TY - JOUR AU - L. A. Kotko AU - S. G. Krein TI - On the completeness of the system of eigen and associated functions of boundary value problems with a parameter in the boundary conditions JO - Doklady Akademii Nauk PY - 1976 SP - 288 EP - 290 VL - 227 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1976_227_2_a6/ LA - ru ID - DAN_1976_227_2_a6 ER -