TY  - JOUR
AU  - G. M. Arhutik
TI  - Some classes of completely integrable systems of second-order partial differential equations with fixed critical points
JO  - Differencialʹnye uravneniâ
PY  - 1982
SP  - 859
EP  - 867
VL  - 18
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1982_18_5_a17/
LA  - ru
ID  - DE_1982_18_5_a17
ER  -