Abdus Salam International Centre for Theoretical Physics (ICTP),Trieste, Italy
Universität Potsdam – Institut für Chemie, Potsdam, Germany
Belarusian State Technological University, Minsk, Belarus
Institute for Informatics and Automation Problems NAS RA, Yerevan, Armenia
L. A . Orbeli Institute of Physiology NAS RA , Yerevan, Armenia