TY - JOUR AU - A. B. Vasil'eva AU - V. F. Butuzov TI - Certain problems on eigenvalues for integro-differential equations with a small parameter coefficient for the higher derivative JO - Differencialʹnye uravneniâ PY - 1965 SP - 1190 EP - 1203 VL - 1 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1965_1_9_a6/ LA - ru ID - DE_1965_1_9_a6 ER -