TY  - JOUR
AU  - V. I. Koroza
TI  - A variation method for wave propagation boundary value problem
JO  - Doklady Akademii Nauk
PY  - 1969
SP  - 795
EP  - 798
VL  - 186
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1969_186_4_a15/
LA  - ru
ID  - DAN_1969_186_4_a15
ER  -