TY - JOUR AU - G. I. Bykovtsev AU - D. D. Ivlev AU - Yu. M. Myasnyankin TI - Relations on surfaces of discontinuity of stress in three-dimensional perfectly rigid-plastic solids JO - Doklady Akademii Nauk PY - 1967 SP - 1039 EP - 1042 VL - 177 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1967_177_5_a14/ LA - ru ID - DAN_1967_177_5_a14 ER -