TY - JOUR AU - M. A. Amanova AU - V. N. Naunyka AU - V. V. Shepelevich TI - Study of two-wave interaction on a mixed reflective hologram in a (001) cut Bi$_{12}$TiO$_{20}$ crystal JO - Problemy fiziki, matematiki i tehniki PY - 2020 SP - 7 EP - 11 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PFMT_2020_1_a0/ LA - ru ID - PFMT_2020_1_a0 ER -