TY  - JOUR
AU  - S. E. Romanova
TI  - Approximate methods for solving, asymptotically in one and two
JO  - Doklady Akademii Nauk
PY  - 1983
SP  - 49
EP  - 54
VL  - 273
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1983_273_1_a10/
LA  - ru
ID  - DAN_1983_273_1_a10
ER  -