TY - JOUR AU - V. G. Korneev TI - Theorem on the positive definiteness of a differential operator in the theory of thin nonsloping shells JO - Doklady Akademii Nauk PY - 1974 SP - 1291 EP - 1293 VL - 218 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1974_218_6_a7/ LA - ru ID - DAN_1974_218_6_a7 ER -