TY - JOUR AU - A. V. Pogorelov TI - Loss of stability of conical shells under twisting JO - Doklady Akademii Nauk PY - 1990 SP - 815 EP - 817 VL - 311 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1990_311_4_a9/ LA - ru ID - DAN_1990_311_4_a9 ER -