TY - JOUR AU - N. A. Sidorov AU - E. B. Blagodatskaya TI - Differential equations with a Fredholm operator in the main JO - Doklady Akademii Nauk PY - 1991 SP - 1087 EP - 1090 VL - 319 IS - 5 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1991_319_5_a11/ LA - ru ID - DAN_1991_319_5_a11 ER -