TY  - JOUR
AU  - H. A. Asatryan
AU  - Yu. A. Kravtsov
TI  - The behaviour of the wave field at the breakdown of the ``gramophone’’ type caustic into two ``cusps’’
JO  - Proceedings of the Yerevan State University. Physical and mathematical sciences
PY  - 1987
SP  - 75
EP  - 80
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/UZERU_1987_1_a11/
LA  - ru
ID  - UZERU_1987_1_a11
ER  -