TY  - JOUR
AU  - I. B. Badriev
AU  - M. M. Karchevskii
TI  - Application of the duality method to the solution of nonlinear problems of filtration theory with a limit gradient
JO  - Differencialʹnye uravneniâ
PY  - 1982
SP  - 1133
EP  - 1144
VL  - 18
IS  - 7
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DE_1982_18_7_a3/
LA  - ru
ID  - DE_1982_18_7_a3
ER  -