%0 Journal Article
%A A. V. Makarevich
%A V. V. Shepelevich
%A S. M. Shandarov
%T Effect of spatial orientation and thickness of Bi$_{12}$GeO$_{20}$ crystal on the gain of the subject light wave: theory and experiment
%J Problemy fiziki, matematiki i tehniki
%D 2018
%P 35-43
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PFMT_2018_4_a6/
%G ru
%F PFMT_2018_4_a6