Ignatios Antoniadis Albert Einstein Center for Fundamental Physics, Institute for Theoretical Physics, University of Bern, Switzerland and LPTHE, UMR CNRS, Sorbonne University, Paris, France
Dejan Stojkovic Department of Physics University at Buffalo, USA
Goran Djordjevic Theoretical Physics Chair, Department of Physics, Faculty of Science and Mathematics, University of Nis, Serbia
Ioannis Rizos Physics Department University of Ioannina, Greece
Alexei Morozov Institute for Theoretical and Experimental Physics ITEP, Moscow, Russia Institute for Information Transmission Problems, Moscow and Russia National Research Nuclear University MEPhI, Moscow, Russia