TY - JOUR AU - Yu. T. Sil'chenko TI - Eigenvalues and eigenfunctions of a differential operator with nonlocal boundary conditions JO - Differencialʹnye uravneniâ PY - 2006 SP - 764 EP - 768 VL - 42 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_2006_42_6_a4/ LA - ru ID - DE_2006_42_6_a4 ER -