TY - JOUR AU - A. O. Kravitsky TI - The two-fold expansion of a certain non-selfadjoint boundary value problem in series of eigenfunctions JO - Differencialʹnye uravneniâ PY - 1968 SP - 165 EP - 177 VL - 4 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1968_4_1_a15/ LA - ru ID - DE_1968_4_1_a15 ER -