TY - JOUR AU - A. M. Kolobov TI - On a periodic boundary value problem for a linear differential equation of the fourth order JO - Differencialʹnye uravneniâ PY - 1965 SP - 758 EP - 763 VL - 1 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1965_1_6_a5/ LA - ru ID - DE_1965_1_6_a5 ER -