TY  - JOUR
AU  - H. A. Asatryan
AU  - G. Kh. Grlgorlan-Khaktian
AU  - A. K. Nikoghosian
TI  - The wave field in the focus of hyperbolic mirror
JO  - Proceedings of the Yerevan State University. Physical and mathematical sciences
PY  - 1991
SP  - 74
EP  - 78
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/UZERU_1991_2_a9/
LA  - ru
ID  - UZERU_1991_2_a9
ER  -