• Momir Arsenijević 
Department of Physics, Faculty of Sciences and Mathematics
University of Kragujevac
Kragujevac, Serbia
National Institute for Physics and Nuclear Engineering
Bucharest, Romania
• Viorel Ciornea
Institute for Applied Physics
Chisinau, Moldova
• Radu Constantinescu
Faculty of Mathematics and Natural Sciences
University of Craiova
Craiova, Romania
• Marija Dimitrijevic Ciric
Faculty of Physics
University of Belgrade
Belgrade, Serbia
Department of Physics, Faculty of Sciences and Mathematics
University of Niš
Niš, Serbia
• Vladimir Dragovic
Centre for Dynamical Systems, Geometry and Combinatorics, Mathematical Institute SANU
Belgrade, Serbia
• Felix Iacob
Faculty of Physics, West University of Timisoara
Timisoara, Romania
• Nikolai Iorgov
Bogolyubov Institute for Theoretical Physics, National Academy of Science of Ukraine
Kyiv, Ukraine
• Predrag Miranovic
Faculty of Natural Sciences and Mathematics
University of Montenegro
Podgorica, Montenegro
• Ioannis Rizos
Division of Theoretical Physics, Physics Department
University of Ioannina
Ioannina, Greece
• Tsvetan Vetsov
Faculty of Physics,
Sofia University
Sofia, Bulgaria
• Roxana Zus
Faculty of Physics
University of Bucharest
Bucharest, Romania