TY - JOUR AU - L. M. Kotlyar AU - È. V. Skvortsov TI - Exact solutions of two-dimensional problems of the steady filtration of a viscoplastic liquid with a variable initial gradient JO - Doklady Akademii Nauk PY - 1976 SP - 545 EP - 548 VL - 230 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1976_230_3_a11/ LA - ru ID - DAN_1976_230_3_a11 ER -