TY - JOUR AU - D. D. Ivlev AU - T. N. Martynova TI - The properties of the general equations of the theory of perfect plasticity JO - Doklady Akademii Nauk PY - 1965 SP - 764 EP - 767 VL - 164 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1965_164_4_a11/ LA - ru ID - DAN_1965_164_4_a11 ER -