TY - JOUR AU - M. L. Rasulov TI - An expansion formula for a spectral problem with boundary conditions containing derivatives of higher order than the equation JO - Differencialʹnye uravneniâ PY - 1982 SP - 2149 EP - 2166 VL - 18 IS - 12 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1982_18_12_a6/ LA - ru ID - DE_1982_18_12_a6 ER -