Հոդված 10573 H. L. Margaryan N. H. Hakobyan V. K. Abrahamyan V. M. Aroutiounian P. K. Gasparyan V. V. Belyaev A. S. Solomatin D.N. Chausov Journal of Contemporary Physics (Armenian Academy of Sciences) Vol. 54, Issue 1 27-32 2019