TY - JOUR AU - M. M. Alimov TI - Conditions for an extremum of filtration flow rate JO - Trudy seminara po kraevym zadačam PY - 1990 SP - 59 EP - 69 VL - 25 IS - 25 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KUKZ_1990_25_25_a4/ LA - ru ID - KUKZ_1990_25_25_a4 ER -