TY - JOUR AU - I. B. Badriev AU - O. A. Zadvornov TI - Analysis of the Stationary Filtration Problem with a Multivalued Law in the Presence of a Point Source JO - Differencialʹnye uravneniâ PY - 2005 SP - 874 EP - 880 VL - 41 IS - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_2005_41_7_a1/ LA - ru ID - DE_2005_41_7_a1 ER -