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\begin{center}
{\Large \rm \bf Table of Contents}

\vspace{1cm}

\begin{tabular}{p{14.2cm}l}
Scientific and Local Organizing Committees \dotfill & {\rm x} \\
List of Sponsors \dotfill & {\rm xi} \\
Preface \dotfill & {\rm xii} \\
In Memoriam of John Xanthakis \dotfill & {\rm xiv}\\
\end{tabular}

\vspace{1cm}

{\large \bf Invited talks}

% ---------------------------- Invited Speakers ------------------------
\vspace{1cm}

\begin{tabular}{p{4.1cm}p{9.6cm}r}
H. Els\"asser & ``On European optical Astronomy"
                  \dotfill & 1 \\                 
R. Wielebinski & ``Radio Astronomy research in Europe"
                  \dotfill & 8 \\                 
D. Kazanas & ``Alternatives to dark Matter"
                  \dotfill & 21 \\                 
\end{tabular}

% ----------------------------- Section 1 ------------------------------
\vspace{1cm}

{\large \bf Section 1: Sun and the Planetary System}

\vspace{1cm}
\begin{tabular}{p{14.2cm}p{0.8cm}}
   ``The fine scale structure of the velocity field in the chromospheric 
   penumbra of a solar sunspot" %f1o22
\dotfill & \phantom{hha}32 \\                 
{\small \it G. Tsiropoula, C.E. Alis\-san\-dra\-kis, D. Dia\-le\-tis, P. Mein  } \\ \\[-0.3cm]
%
   ``Running penumbral waves in a chromospheric sunspot" %f1o20
\dotfill & 37 \\                 
{\small \it G. Tsiropoula, D. Dia\-letis, C.E. Alissandrakis, P. Mein } \\ \\[-0.3cm]
%
   ``Microturbulent sensitivity on some solar spectral lines" %f1o21
\dotfill & 42 \\                 
{\small \it S. Erkapi\' c, I. Vince } \\ \\[-0.3cm]
%
   ``Competetion model for the evolution of solar active regions" %f1o23
\dotfill & 46 \\                 
{\small \it N. Mylonas, R. Klu\-iving, L. Vlahos, M. Gergoulis } \\ \\[-0.3cm]
%
    ``Are flares the result of a self-organisation process in active regions?" %f1o17
\dotfill & 52 \\                 
{\small \it M.K. Georgoulis, L. Vlahos, R. Kluiving } \\ \\[-0.3cm]
%
   ``The acceleration and transport of energetic particles inside an evolving
    active region" %f1o18
\dotfill & \phantom{hha}59 \\                 
{\small \it A. Anastasiadis, L. Vlahos } \\ \\[-0.3cm]
%
   ``A non-linear RLC model for the solar cycle" %f1o27
\dotfill & 64 \\                 
{\small \it J.M. Polygiannakis, X. Moussas } \\ \\[-0.3cm]
%
   ``Macrostructure of solar activity as observed at neutron monitor energies" %f1o34
\dotfill & 68 \\                 
{\footnotesize \it H. Mavromichalaki, L. Marmatsouri, A. Vassilaki, A. Belehaki, X. Rafios, B. Petropoulos } \\ \\[-0.3cm]
\end{tabular}
%
%
\begin{tabular}{p{14.2cm}p{0.8cm}}
    ``Electron-impact broadening of Mg II lines for
    solar and stellar atmospheres investigations" 
\dotfill & \phantom{hha}73 \\                 
{\small \it  M. S. Dimitrijevi\'c, S. Sahal-Br\'echot} \\ \\[-0.3cm]
%
    ``The acceleration and modulation of anomalous He"
\dotfill & 75 \\                 
{\small \it M. Savopoulos, J.J. Quenby } \\ \\[-0.3cm]
%
    ``Energy balance at the Earth's magnetosphere"
\dotfill & 82 \\                 
{\small \it G.A. Drillia, X. Moussas } \\ \\[-0.3cm]
%
    ``Interplanetary particle event measured by EPAC/ULYSSES"
\dotfill & 87 \\                 
{\small \it A. Kakouris, X. Moussas, J.M. Polygiannakis, A. Alevizos,
           {\it et al.} } \\ \\[-0.3cm]
%
    ``Heliosphere revisited: Post {\it Ulysses} 3-D turbulent picture"
\dotfill & 92 \\                 
{\small \it  X. Moussas, J.M. Polygiannakis, A. Kakouris, A. Alevizos  } \\ \\[-0.3cm]
%
    ``3-D simulation results for the diffusion of solar energetic particles 
    in the interplanetary space"
\dotfill & \phantom{hha}97 \\                 
{\small \it A. Kakouris, X. Moussas, J.M. Polygiannakis, J.J. Quenby } \\ \\[-0.3cm]
%
    ``Non-linear dynamics in the interplanetary magnetic field fluctuations"
\dotfill & 102 \\                 
{\small \it J.M. Polygiannakis, X. Moussas  } \\ \\[-0.3cm]
%
    ``Study of the large scale magnetic structures observed by 
     {\it Geotail} in the distant tail"
\dotfill & \phantom{hha}106 \\                 
{\small \it A. Belehaki, E.T. Sarris, R.W. McEntire, S. Kokubun, T. Yama\-moto}\\
\\[-0.3cm]
%
    ``Azimuthal expansion of the substorm current wedge at the 
    geosynchronous orbit"
\dotfill & \phantom{hha}112 \\                 
{\small \it I. Tsagouri, A. Belehaki, E. Mavromichalaki } \\ \\[-0.3cm]
%
   ``Post-Newtonian perturbations in satellite nodal period due to
   planetary oblateness"
\dotfill & \phantom{hha}117 \\                 
{\small \it V. Mioc, M. Stavinschi} \\ \\[-0.3cm]
%
   ``The impact of SL9 fragments with Jupiter: The development of the G spot"
   & 121 \\                 
{\small \it L.\v C. Popovic, A. Kubi\v cela, J. Arsenijevi\'c, et al. } \\ \\[-0.3cm]
%
  ``Astrophysical flows: Analytical 2-D solutions"
\dotfill & 127 \\                 
{\small \it A. Kakouris, X. Moussas } \\ \\[-0.3cm]
%
  ``Solar activity influence on the Danube river flow"
\dotfill & 132 \\                 
{\small \it B.D. Jovanovi\'c  } \\ \\[-0.3cm]
%
  ``A method of determination of unaccounted effects affecting
    $(O-C)_\delta$ values for the planets"
\dotfill & \phantom{hha}136 \\                 
{\small \it V. Trajkovska, M. Mijatov } \\ \\[-0.3cm]
\end{tabular}
%
%------------------------------ Section 2 -------------------------------
%
\newpage%
{\large \bf Section 2: Stars and Stellar Systems}
\vspace{1cm}

\begin{tabular}{p{14.2cm}p{0.8cm}}
    ``The wide-field plate database - New prospects for astronomical archives"
\dotfill & 140 \\                 
{\small \it M.K. Tsvet\-kov, K.Y. Stav\-rev, K.P. Tsvet\-ko\-va, A.S. Mu\-ta\-fov } \\ \\[-0.3cm]
%
    ``Develpoment of the flare stars database"
\dotfill & 146 \\                 
{\small \it K.P. Tsvetkova, M.K. Tsvetkov, K.Y. Stavrev } \\ \\[-0.3cm]
%
   ``The use of the meridian observations of the sun and the planets for the 
     purpose of the fundamental-coordinate-system orientation"
\dotfill & \phantom{hha}151 \\                 
{\small \it S. Sad\v zakov, Z. Cvet\-ko\-vi\'c, M. Da\v ci\'c } \\ \\[-0.3cm]
%
    ``On the systemetic errors of declinations and proper motions from the
      Belgrade Zenith-Telescope observations in the period 1949-1960"
\dotfill & \phantom{hha}155 \\                 
{\small \it G. Damljanovi\'c } \\ \\[-0.3cm]
%
   ``The accuracy estimate for star positions in the vicinity of radio sources
    in zone $-$30\degr to $+$60\degr obtained with the LMC in Belgrade"
\dotfill & \phantom{hha}164 \\                 
{\small \it S. Sad\v zakov, M. Da\v ci\'c, Z. Cvetkovi\'c } \\ \\[-0.3cm]
%\end{tabular}
%
    ``Multidimensional statistical analysis of star clusters"
\dotfill & 169 \\                 
{\small \it A.M. Eigenson } \\ \\[-0.3cm]
%
    ``Metallicity function of globular cluster: One or two maxima?"
\dotfill & 172 \\                 
{\small \it A.M. Eigenson } \\ \\[-0.3cm]
%
    ``Bayesian methods in inverse astronomical problems"
\dotfill & 175 \\                 
{\small \it I.V. Bamias, N. Hiotelis } \\ \\[-0.3cm]
%
    ``Neutron star models with spline-fitted equation of state"
\dotfill & 179 \\                 
{\small \it V. Pop, C. Iancu, T. Oproiu } \\ \\[-0.3cm]
%
    ``The physical properties and evolutionary status of the HAeBe candidates 
      NV Ori, T Ori and V350 Ori"
\dotfill & \phantom{hha}183 \\                 
{\small \it M.E. van den Ancker, G. Glinos, P.S. The  } \\ \\[-0.3cm]
%
    ``A qualitative study of the Lane-Emden equation"
\dotfill & 191 \\                 
{\small \it C. Blaga } \\ \\[-0.3cm]
%
    ``A first approach to the shell structure of Be binary stars"
\dotfill & 195 \\                 
{\small \it E.~Danezis, E.~Theodossiou, P.G.~Laskarides } \\ \\[-0.3cm]
%
    ``The He - He\hbox{$^+$} - He recombination and He - He\hbox{$^*$}(n) 
      ionization in stellar atmospheres"
\dotfill & \phantom{hha}200 \\                 
{\small \it M.S. Dimitrijevi\'c, Z. Djuri\'c, Lj.M. Ignjatovi\'c, A.A. Mihajlov } \\ \\[-0.3cm]
\end{tabular}
%
%
\newpage
%
\begin{tabular}{p{14.2cm}p{0.8cm}}
%
    ``On the Stark broadening of CV lines in stellar atmospheres"
\dotfill & 205 \\                 
{\small \it M.S. Dimitrijevi\'c, S. Sahal-Br\'echot } \\ \\[-0.3cm]
%
    ``Stark broadening of Ge\,III and Ge\,IV lines"
\dotfill & 208 \\                 
{\small \it L.\v C. Popovi\'c, M.S. Dimitrijevi\'c } \\ \\[-0.3cm]
%
    ``The UV spectrum of HD 175754"
\dotfill & 212 \\                 
{\small \it M.~Stathopoulou, E.~Danezis, P.G.~Laskarides, E.~Theodossiou } \\ \\[-0.3cm]
%
    ``S-wave  distortions of the emission line profiles in the spectra of
      cataclysmic binaries"
\dotfill & \phantom{hha}215 \\                 
{\small \it P. Hantzios } \\ \\[-0.3cm]
%
   ``An interpretation of CB light-curve of the active cataclysmic variable 
     {\it Z Cha}, by using the inverse-problem method"
\dotfill & \phantom{hha}221 \\                 
{\small \it G. Djuracevic  } \\ \\[-0.3cm]
%
   ``Variations of the linear optical polarisation of 88 Her"
\dotfill & 228 \\                 
{\footnotesize \it J. Arse\-ni\-jevi\'c, S. Markovi\'c-Kr\v slja\-nin, S. Jan\-kov, I. Vince, A. Ku\-bi\v ce\-la, S. Er\-ka\-pi\'c  } \\ \\[-0.3cm]
%
    ``The dependence of II Pegasi flare activity on the phase of the 
      short-term periodic light variations"
\dotfill & \phantom{hha}234 \\                 
{\small \it M. Mathioudakis, S.I. Avgo\-lou\-pis, L.N. Mavri\-dis, J.H. Seiradakis } \\ \\[-0.3cm]
%
    ``Observation of the rotational modulation effect on EV Lac and BY Drac"
\dotfill & 240 \\                 
{\small \it M.E. Contadakis } \\ \\[-0.3cm]
%
   ``Eclipse mapping of the cataclysmic variable GS Pav"
\dotfill & 246 \\                 
{\small \it O. Barziv, T. Augu\-steijn, H. Spruit, E. Kuulkers, M. Berger, J. van Paradijs, J.H. Seiradakis } \\ \\[-0.3cm]
%
   ``The Innes constants for a double star as functions of the axes and of the
     apparent-orbit-positions parameters"
\dotfill & \phantom{hha}252 \\                 
{\small \it G.M. Popovi\' c, R. Pavlovi\' c } \\ \\[-0.3cm]
%
   ``Agekyan's factor in double stars"
\dotfill & 256 \\                 
{\small \it V. Traj\-kovska, S. Ninkovi\'c } \\ \\[-0.3cm]
%
    ``The contact system BD $+$36$^o$ 5017"
\dotfill & 260 \\                 
{\small \it H. Rovithis-Livaniou, P. Rovithis, G. Oprescu, R. Dumitrescu, M.D. Suran, A. Kalimeris  } \\ \\[-0.3cm]
%
   ``The CQ Draconis system observed at Bucharest and Athens Observatories"
\dotfill & 265 \\                 
{\small \it P. Rovithis, G. Oprescu, H. Rovithis-Livaniou, A. Dumitrescu } \\ \\[-0.3cm]
%
    ``A photometric study of the eclipsing system GR Tauri"
\dotfill & 270 \\                 
{\footnotesize \it C. Lazaro, P. Niarchos, P. Rovithis, H. Rovithis-Livaniou, M.J. Arevalo, E. Antonopoulou } \\ \\[-0.3cm]
\end{tabular}
%
%
\begin{tabular}{p{14.2cm}p{0.8cm}}
    ``Study of the period changes of V505 Sagittarii system"
\dotfill & 275 \\                 
{\small \it H. Rovithis-Livaniou, P. Rovithis, A. Kranidiotis, G. Athanasiades, A. Kalimeris } \\ \\[-0.3cm]
%
   ``Observed short-time scale evolution of contact binaries"
\dotfill & 279 \\                 
{\small \it A. Kalimeris, H. Rovithis-Livaniou, P. Rovithis } \\ \\[-0.3cm]
%
   ``Problems in understanding contact binary systems"
\dotfill & 284 \\                 
{\small \it H.W.~Duerbeck, P.G.~Niarchos } \\ \\[-0.3cm]
%
    ``New BV photometry of the contact system VW Cephei"
\dotfill & 287 \\                 
{\small \it P.G.~Niarchos, V.~Manimanis and G.~Pantazis } \\ \\[-0.3cm]
%
    ``A spot model treatment of the O'Connell effect in the light curves 
      of eclipsing binaries"
\dotfill & \phantom{hha}292 \\                 
{\small \it P.G. Niarchos, D. Kotta, P.G. Laskarides } \\ \\[-0.3cm]
%
   ``Photoelectric observations of SZ Psc during 1993-1994"
\dotfill & 298 \\                 
{\small \it E. Antonopoulou, J. De\-liyiannis, C.K. Mitrou  } \\ \\[-0.3cm]
%
    ``The RS CVn binaries seen through the eye of IRAS"
\dotfill & 301 \\                 
{\small \it C.K. Mitrou, J.G. Doyle, M. Mathioudakis, E. Antonopoulou } \\ \\[-0.3cm]
%
    ``Statistical moments of pulsar emission distribution"
\dotfill & 310 \\                 
{\small \it Tsakmakis P., Seiradakis J.H. } \\ \\[-0.3cm]
%
    ``The peculiar moding of PSR 1237+25"
\dotfill & 316 \\                 
{\small \it D.~Psaltis, J.H.~Seiradakis } \\ \\[-0.3cm]
%
    ``Depolarization of pulsar emission at mm-wavelengths"
\dotfill & 322 \\                 
{\small \it K.M. Xilouris, M. Kramer } \\ \\[-0.3cm]
%
    ``X-ray spectra of neutron-star low mass binary systems"
\dotfill & 330 \\                 
{\small \it D. Psaltis, F.K. Lamb, G.S. Miller } \\ \\[-0.3cm]
%
    ``A new mechanism for the formation of LMXBs: Direct supernova"
\dotfill & 335 \\                 
{\small \it V. Kalogera } \\ \\[-0.3cm]
%
    ``OH masers as diagnostics of physical conditions in star-forming regions"
\dotfill & 341 \\                 
{\small \it K.G. Pavlakis, N.D. Kylafis } \\ \\[-0.3cm]
\end{tabular}
%
%
%
% ---------------------------- Section 3 ----------------------------
%
\vspace*{0.3cm}
{\large \bf Section 3: Galaxies and Extragalactic Systems}
\vspace{1cm}
%
%\begin{tabular}{p{4.1cm}p{9.6cm}r}
\begin{tabular}{p{14.2cm}p{0.8cm}}
\\
    ``The relation between existing resonances and observed morphology 
      in disk galaxies"
\dotfill & \phantom{hha}346 \\                 
{\small \it P.A. Patsis } \\ \\[-0.3cm]
%
    ``Can cosmological collapse create counter-rotating galaxies?"
\dotfill & 350 \\                 
{\small \it M. Harsoula, N. Voglis } \\ \\[-0.3cm]
\end{tabular}
%
%
\begin{tabular}{p{14.2cm}p{0.8cm}}
%
    ``Magnetorotational instabilities in accretion disks"
\dotfill & 356 \\                 
{\small \it J. Contopoulos, D. Christo\-doulou, D. Ka\-za\-nas } \\ \\[-0.3cm]
%
    ``Estimating the cosmoligical density parameter from the 
local group peculiar velocity and dipole moment"
\dotfill & \phantom{hha}360 \\                 
{\small \it Manolis Plionis } \\ \\[-0.3cm]
%
    ``Kinematics and dynamics of superclusters of galaxies"
\dotfill & 364 \\                 
{\small \it M. Kalinkov, I. Val\-tcha\-nov, I. Kuneva  } \\ \\[-0.3cm]
%
    ``Sampling effects on cosmological dipoles"
\dotfill & 369 \\                 
{\small \it V. Kolokotronis, M. Plionis P. Coles, S. Borgani, L. Moscardini} \\ \\[-0.3cm]
%
    ``Kinematical study of the outer regions of the outer dwarf spheroidal 
      galaxies: The case of Sculptor"
\dotfill & \phantom{hha}374 \\                 
{\small \it F. Maragoudaki, D. Hatzidimitriou, M. Irwin, G.S. Da Costa } \\ \\[-0.3cm]
%
    ``Ionization maps of Seyfert 1 and Seyfert 2 galaxies"
\dotfill & 378 \\                 
{\small \it E. Xanthopoulos  } \\ \\[-0.3cm]
%
    ``The first Caltech--Jodrell Bank VLBI survey"
\dotfill & 383 \\                 
{\small \it A.G. Polatidis } \\ \\[-0.3cm]
%
    ``Reference catalog of groups of galaxies"
\dotfill & 388 \\                 
{\small \it L. Kuneva, M. Kalinkov } \\ \\[-0.3cm]
%
    ``LMC  Clusters: Ideal loci to find Planetary Nebulae"
\dotfill & 393 \\                 
{\small \it E. Kontizas, A. Dapergolas, M. Kontizas, D.H. Morgan } \\ \\[-0.3cm]
%
    ``Influence of the environment in the dynamical evolution of stellar systems"
    & 399 \\                 
{\small \it M. Kontizas, D. Gouliermis, E. Kontizas } \\ \\[-0.3cm]
%
    ``Stellar associations in the LMC: LH 52, 53"
\dotfill & 405 \\                 
{\small \it A. Dapergolas, M. Kontizas, P. Hantzios, E. Kontizas, 
            I. Bellas-Velidis, A. Fasia, A. Georgakakis } \\ \\[-0.3cm]
%
    ``Automated classification of stellar spectra in nearby galaxies. 
      Artificial neural networks application"
\dotfill & \phantom{hha}411 \\                 
{\small \it I. Bellas-Velidis, E. Kontizas } \\ \\[-0.3cm]
%
    ``Spectral classification of stars in external galaxies: The LMC"
\dotfill & 417 \\                 
{\small \it P. Hantzios, A. Dapergolas, E. Kontizas } \\ \\[-0.3cm]
%
    ``A study of the density structure of giant extragalactic \HII\ regions"
\dotfill & 423 \\                 
{\small \it H. Anastasiou, J.M. Vilchez, H.O. Casta\~{n}eda} \\ \\[-0.3cm]
%
    ``The spectra of radio spurs between 38, 408 and 1420$\>$MHz"
\dotfill & 429 \\                 
{\small \it J. Milogradov-Turin, S. Nikoli\'k} \\ \\[-0.3cm]
%
\end{tabular}
%
%
\begin{tabular}{p{14.2cm}p{0.8cm}}
%
    ``Tracing the \HI\ edge of NGC 628"
\dotfill & 433 \\                 
{\small \it A. Taramopoulos, S. Rao, F.H. Briggs } \\ \\[-0.3cm]
%
    ``A study of the kinematics of the peculiar galaxy Arp~10"
\dotfill & 436 \\                 
{\small \it V. Charmandaris, P.N. Appleton } \\ \\[-0.3cm]
%
    ``\HI\ observations of the starburst galaxy NGC 2146"
\dotfill & 441 \\                 
{\small \it A. Taramopoulos, F.H. Briggs, H. Payne  } \\ \\[-0.3cm]
%
    ``Stochastic particle acceleration in a strongly turbulent flow of a jet"
\dotfill & 445 \\                 
{\small \it K. Manolakou, A. Anastasiadis, L. Vlahos } \\ \\[-0.3cm]
%
% POSTERS SECTION 3
%
    ``Warm IR Seyferts: Bidimensional spectroscopy of interacting systems"
\dotfill & 451 \\                 
{\small \it E. Chatzichristou } \\ \\[-0.3cm]
%
\end{tabular}
%
% ----------------------------- Section 4 ------------------------------
%
\\
{\large \bf Section 4: Relativity, Relativistic Astrophysics and Cosmology}
\vspace*{0.4cm}
%
\begin{tabular}{p{14.2cm}p{0.8cm}}
\\
%
    ``The role of spin effects on gravitational waves coming from compact 
      binaries"
\dotfill & 457 \\                 
\vspace{-0.9cm}
{\small \it Th.A. Apostolatos } \\ \\[-0.9cm]
%
    ``On the detectability of the post-Newtonian effects in gravitational-wave 
      emission of a coalescing binary"
\dotfill & \phantom{hha}461 \\                 
{\small \it K.D. Kokkotas, A. Kr\'olak, G. Sch\"afer } \\ \\[-0.3cm]
%
    ``On the oscillation spectra of relativistic stars"
\dotfill & 466 \\
{\small \it N. Andersson } \\ \\[-0.3cm]
%
    ``Relativistic orbital motion of binary pulsars"
\dotfill & 470 \\                 
{\small \it T.I. Maindl, P. M\"uller } \\ \\[-0.3cm]
%
    ``Gamma ray burst models: Universal spectral characteristics"
\dotfill & 475 \\                 
{\small \it H. Papathanasiou, P. M\'esz\'aros  } \\ \\[-0.3cm]
%
    ``Sychrotron emission from the inner jet of BL Lac objects"
\dotfill & 480 \\                 
{\small \it M. Georganopoulos, A.P. Marscher } \\ \\[-0.3cm]
%
    ``Spectral shift at the interior of a gravitating source"
\dotfill & 486 \\                 
{\small \it Ferreos Graos } \\ \\[-0.3cm]
%
    ``A new theory for estimating the variations of quasar's spectral lines"
\dotfill & 490 \\                 
{\small \it B. Petropoulos, M. Mavrogiannis } \\ \\[-0.3cm]
%
    ``Numerical experiments in string cosmology"
\dotfill & 494 \\                 
{\small \it M. Sakellariadou } \\ \\[-0.3cm]
%
    ``Disappearance of hierarchical clustering?"
\dotfill & 498 \\                 
{\small \it M. Kalinkov, I. Valtcha\-nov, I. Kuneva } \\ \\[-0.3cm]
%
\end{tabular}
%
\newpage
%
\begin{tabular}{p{14.2cm}p{0.8cm}}
%
    ``Doppler peaks of the texture scenario of structure formation"
\dotfill & 506 \\                 
{\small \it M. Sakellariadou } \\ \\[-0.3cm]
%
    ``On the interdependence of cosmology and biology"
\dotfill & 511 \\                 
{\small \it Nickas G. } \\ \\[-0.3cm]
\end{tabular}
%
%
%\vspace{1cm}
%
% ----------------------------- Section 5 ---------------------------
%
{\large \bf Section 5: Celestial Mechanics, Stellar Dynamics} \\
{\large \bf and Chaotic Systems}
%
\begin{tabular}{p{14.2cm}p{0.8cm}}
\\
%
    ``Distribution of periodic orbits in a 2-D Hamiltonian system" %f5o6
\dotfill & 515 \\                 
{\small \it E. Grousouzakou, G. Con\-to\-pou\-los, C. Po\-ly\-milis  } \\ \\[-0.3cm]
%
    ``3-D periodic orbits emanating from parent periodic orbits" %s5o11
\dotfill & 520 \\                 
{\small \it B. Barbanis } \\ \\[-0.3cm]
%
    ``The effective stability in the restricted three body problem" % f5o3
\dotfill & 526 \\                     
{\small \it Ch. Skokos, G. Contopoulos, A. Giorgilli } \\ \\[-0.3cm]
%
    ``Chaotic transport in a model 3-D Hamiltonian system" % s5o12
\dotfill & 532 \\                 
{\small \it H. Varvoglis, Ch. Vozikis, B. Barbanis } \\ \\[-0.3cm]
%
    ``On the relativistic deviations of the locations of the resonances in 
      the relativistic restricted three-body problem" % 5p5
\dotfill & \phantom{hha}538 \\                 
{\small \it T.I. Maindl } \\ \\[-0.3cm]
%
    ``Bifurcations of plane to 3-D periodic orbits in the photogravitational 
      restricted three body problem" % 5p4
\dotfill & \phantom{hha}544 \\                 
{\small \it E.A. Perdios, S.S. Kanavos } \\ \\[-0.3cm]
%
    ``Quantitative and qualitative aspects of motion stability with
      applications in Astronomy" % f5o5
\dotfill & \phantom{hha}548 \\                 
{\small \it A. Pal, A. Bu\-cur-Dru\-gan } \\ \\[-0.3cm]
%
    ``On the linear stability of core positions" % 5p2
\dotfill & 551 \\                 
{\small \it E.A. Perdios } \\ \\[-0.3cm]
%
    ``On the determination of the preliminary orbits of near-Earth artificial 
      satellites" % f5o10
\dotfill & \phantom{hha}555 \\                 
{\small \it L. Burs, T. Oproiu } \\ \\[-0.3cm]
%
 ``On the application of the Steffensen numerical integration method
   to the restricted three body problem"% f5o9
\dotfill & \phantom{hha}559 \\                 
{\small \it A. Pal, F. Szenkovits  } \\ \\[-0.3cm]
%
    ``On the non-linear stability of the inner collinear equilibrium point 
      in the three-body problem" % 5p3
\dotfill & \phantom{hha}563 \\                 
{\small \it K.E. Papadakis } \\ \\[-0.3cm]
%
\end{tabular}
%
\newpage
%
\begin{tabular}{p{14.2cm}p{0.8cm}}
\\
%
    {\small ``The hierarchical three body problem as two 2-dimensional 
              coupled mappings"} % s5o13
\dotfill & 571 \\                 
{\small \it J.D. Hadjidemetriou, R. Dvorak } \\ \\[-0.3cm]
%
    ``Non periodic orbits of a four dimensional symplectic map" %f5o4
\dotfill & 578 \\                 
{\small \it Ch. Skokos, G. Contopoulos, C. Po\-ly\-milis } \\ \\[-0.3cm]
%
    ``The four dimensional hyperbolic twist map" % s5o14
\dotfill & 583 \\                 
{\small \it G. Voyatzis, S. Ichtiaroglou } \\ \\[-0.3cm]
%
    ``Two dimensional programmed motion" % f5o1
\dotfill & 587 \\                 
{\small \it G. Bozis } \\ \\[-0.3cm]
%
    ``Two-dimensional inverse problem of dynamics in a rotating frame" % f5o2
\dotfill & 591 \\                 
{\small \it A. Pal, M.C. Anisiu } \\ \\[-0.3cm]
\end{tabular}
%
%
\begin{tabular}{p{14.2cm}p{0.8cm}}
%
    ``Fitting the distribution function of N-body cold collapsed systems" % s5o10
\dotfill & 595 \\                 
{\small \it N. Voglis, Ch. Efthy\-miopoulos } \\ \\[-0.3cm]
%
    ``Important astrophysical potentials in three dimensions" % f5o7
\dotfill & 602 \\                 
{\small \it B. Zafeiropoulos, Ch. Stavliotis } \\ \\[-0.3cm]
%
    ``The equilibrium attitudes of two gyrostats in syzygy with two 
      attracting centers" % f5o8
\dotfill & \phantom{hha}609 \\                 
{\small \it A.G. Mavraganis, T.J. Kalvouridis } \\ \\[-0.3cm]
\end{tabular}
%
%
%\vspace{1cm}
%
% ------------------------------- Section 6 ----------------------------
%
{\large \bf Section 6: Astronomical Infrastructure in Greece}
%
%\begin{tabular}{p{4.1cm}p{9.6cm}r}
\begin{tabular}{p{14.2cm}p{0.8cm}}\\
    ``The Astronomical Institute and its role in the Greek astronomical 
    community" %f6o1
\dotfill & \phantom{hha}615 \\                 
{\small \it E. Kontizas } \\ \\[-0.3cm]
%
    ``The contribution of the Stephanion Observatory to the development
      of Observational Astronomy in Greece" % f6o2
\dotfill & \phantom{hha}621 \\                 
{\small \it L.N. Mavridis } \\ \\[-0.3cm]
%
    ``Remotely controlled operation for repetitive data acquisition: The 
    future of the Korgialenios Astronomical Station of Kryonerion, Greece"
\dotfill & \phantom{hha}629 \\                 
{\small \it N. Solomos, I. Arageorgis, I. Madianos, A. Mavrogonatos, 
     I.K. Hatzilau, F. Kotsakis } \\ \\[-0.8cm]
%
    ``The teaching of Astronomy in the 1st Lyceum of Naoussa, Greece"
\dotfill & 634 \\                 
{\small \it H. Tomboulides } \\ \\[-0.3cm]
%
    ``On the development and evolution of Astronomy in ancient Egypt"
\dotfill & 638 \\                 
{\small \it S.E. Maravelias } \\ \\[-0.3cm]
%
% POSTERS SECTION 6
%
    ``The research otential of advanced small telescopes"
\dotfill & 643 \\                 
{\small \it N.H. Solomos } \\ \\[-0.3cm]
\end{tabular}
\end{center}
\newpage

\end{document}

