TY - JOUR AU - I. B. Badriev AU - O. V. Pankratova AU - R. R. Shagidullin TI - Iterative methods for solving filtration problems with a discontinuous law with a limit gradient JO - Differencialʹnye uravneniâ PY - 1997 SP - 396 EP - 399 VL - 33 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1997_33_3_a16/ LA - ru ID - DE_1997_33_3_a16 ER -