TY - JOUR AU - M. I. Vishik AU - G. I. Èskin TI - General boundary-value problems wtih discontinuous boundary conditions JO - Doklady Akademii Nauk PY - 1964 SP - 25 EP - 28 VL - 158 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1964_158_1_a4/ LA - ru ID - DAN_1964_158_1_a4 ER -