TY - JOUR AU - A. V. Pogorelov TI - Homeomorphism of convex surfaces preserving the turning variations of curves JO - Doklady Akademii Nauk PY - 1970 SP - 25 EP - 26 VL - 191 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1970_191_1_a5/ LA - ru ID - DAN_1970_191_1_a5 ER -