Paolo Padovani (European Southern Observatory, Germany)
 Evanthia Hatziminaoglou (European Southern Observatory, Germany)
 Milan S. Dimitrijević (Astronomical Observatory Belgrade, Serbia)
 Oleg Malkov (Institute of Astronomy, Russian Academy of Sciences, Moscow State University, Russia )
 Petr Skoda (Astronomical Observatory Ondrejov, Czech Republic )
 Igor Chilingarian (CDS - Observatoire de Strasbourg, France)
 Milcho Tsvetkov (Sofia Sky Archive Data Center, Bulgarian Academy of Sciences, Bulgaria)
 Katja Tsvetkov (Sofia Sky Archive Data Center, Bulgarian Academy of Sciences, Bulgaria)
 Žarko Mijajlović (Faculty of Mathematics, Univ. Belgrade, Serbia)
 Predrag Janičić (Faculty of Mathematics, Univ. Belgrade, Serbia)
 Darko Jevremović (Astronomical Observatory Belgrade, Serbia)
 Edi Bon (Astronomical Observatory Belgrade, Serbia)