E. S. Kokoulina
Joint Institute for Nuclear Research
Russian Federation

Kokoulina Elena S. – D. Sc. (Physics and Mathematics), Assistant Professor, Head of the Sector.

LHEP JINR, 141980, Dubna

M. I. Levchuk
B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus
Belarus

Levchuk Michael I. – D. Sc. (Physics and Mathematics), Chief researcher.

68-2, Nezavisimosti Ave., 220072, Minsk

M. N. Nevmerzhitsky
Institute of Applied Physics of the National Academy of Sciences of Belarus
Belarus

Nevmerzhitsky Maxim N. – Researcher.

16, Akademicheskaya Str., 220072, Minsk

R. G. Shulyakovsky
Institute of Applied Physics of the National Academy of Sciences of Belarus
Belarus

Shulyakovsky Roman G. – Ph. D. (Physics and Mathematics), Assistant Professor, Director.

16, Akademicheskaya Str., 220072, Minsk