TY  - JOUR
AU  - A. V. Makarevich
AU  - V. V. Shepelevich
AU  - S. M. Shandarov
TI  - Effect of spatial orientation and thickness of Bi$_{12}$GeO$_{20}$ crystal on the gain of the subject light wave: theory and experiment
JO  - Problemy fiziki, matematiki i tehniki
PY  - 2018
SP  - 35
EP  - 43
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PFMT_2018_4_a6/
LA  - ru
ID  - PFMT_2018_4_a6
ER  -