TY - JOUR AU - S. S. Grigoryan TI - A problem of L.~Prandtl and the theory of flow of a plastic material over surfaces JO - Doklady Akademii Nauk PY - 1981 SP - 1075 EP - 1077 VL - 257 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1981_257_5_a11/ LA - ru ID - DAN_1981_257_5_a11 ER -