TY  - JOUR
AU  - N. G. Marchuk
TI  - On a method of reducing the wave equation to a system of first order equations
JO  - Doklady Akademii Nauk
PY  - 1984
SP  - 1309
EP  - 1311
VL  - 276
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1984_276_6_a5/
LA  - ru
ID  - DAN_1984_276_6_a5
ER  -