TY - JOUR AU - Sun Khe-shen TI - Some problems bearing on infinitesimal flexures of surfaces JO - Doklady Akademii Nauk PY - 1958 SP - 559 EP - 561 VL - 122 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1958_122_4_a4/ LA - ru ID - DAN_1958_122_4_a4 ER -