TY  - JOUR
AU  - V. I. Yudovich
TI  - Cosymmetry, degeneration of solutions of operator equations, and onset of a filtration convection
JO  - Matematičeskie zametki
PY  - 1991
SP  - 142
EP  - 148
VL  - 49
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MZM_1991_49_5_a18/
LA  - ru
ID  - MZM_1991_49_5_a18
ER  -