TY  - JOUR
AU  - A. V. Knyazev
TI  - The method of frozen coefficients
JO  - Differencialʹnye uravneniâ
PY  - 1979
SP  - 551
EP  - 552
VL  - 15
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1979_15_3_a19/
LA  - ru
ID  - DE_1979_15_3_a19
ER  -