Ana Borisova - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Anelia Staneva - Sofia University, Bulgaria

Daniela Andreeva - Institute of Space Researches, Bulgarian Academy of Sciences, Bulgaria

Dimitar Vassilev - Sofia University, Bulgaria

Dragomir Olević - Astronomical Observatory Belgrade, Serbia

Edi Bon - Astronomical Observatory Belgrade, Serbia

Endrik Krügel - Max Planck MPIfR - Bon, Germany

Galin Borisov - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Georgi Ivanov - Sofia University, Bulgaria

Hristo Lukarski - Institute of Space Research, Bulgarian Academy of Sciences, Bulgaria

Ivan Yankulov - Sofia University , Bulgaria

Jordanka Borissova - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Lubomir Iliev - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Katya Tsvetkova - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Konstantin Stavrev - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Krasimira Yankova - Institute of Space Research, Bulgarian Academy of Sciences, Bulgaria

Luba Vassileva - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Lubomir Iliev - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Luka Popović - Astronomical Observatory Belgrade - Serbia

Maria Dimitrova - Institute of Space Research, Bulgarian Academy of Sciences, Bulgaria

Marusja Bachvarova - Institute of Space Research, Bulgarian Academy of Sciences, Bulgaria

Milan Dimitrijević - Astronomical Observatory Belgrade, Serbia

Milcho Tsvetkov - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Miodrag Dačić - Astronomical Observatory Belgrade, Serbia

Oleg Vassilev - Sofia University,  Bulgaria

Orlin Stanchev - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Petko Nedialkov - Sofia University, Bulgaria

Predrag Jovanović - Astronomical Observatory Belgrade, Serbia

Radostin Kurtev - Sofia University, Bulgaria

Renada Konstantinova-Antova - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Rossitsa Ivanova - Veliko Tarnovo, Bulgaria

Rumen Bogdanovski - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Slobodan Ninković - Astronomical Observatory Belgrade, Serbia

Svetlin Fotev - Institute of Space Research, Bulgarian Academy of Sciences, Bulgaria

Todor Veltchev - Sofia University, Bulgaria

Tsvetan Georgiev - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Valeri Golev - Sofia University, Bulgaria

Vasil Popov - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Vladan Čelebonović - Institute of Astronomy, Serbia

Vladimir Shkodrov - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Vojislava Protić Benišek - Astronomical Observatory Belgrade, Serbia

Yuliana Goranova - Institute of Astronomy, Bulgarian Academy of Sciences, Bulgaria

Zoran Simić - Astronomical Observatory Belgrade, Serbia

Zorica Cvetković - Astronomical Observatory Belgrade, Serbia