@article{PFMT_2018_4_a6,
     author = {A. V. Makarevich and V. V. Shepelevich and S. M. Shandarov},
     title = {Effect of spatial orientation and thickness of {Bi}$_{12}${GeO}$_{20}$ crystal on the gain of the subject light wave: theory and experiment},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {35--43},
     publisher = {mathdoc},
     number = {4},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2018_4_a6/}
}