TY  - JOUR
AU  - A. O. Oganesyan
TI  - The Huygens principle for a class of hyperbolic equations with variable coefficients
JO  - Differencialʹnye uravneniâ
PY  - 1991
SP  - 1402
EP  - 1409
VL  - 27
IS  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1991_27_8_a14/
LA  - ru
ID  - DE_1991_27_8_a14
ER  -