TY - JOUR AU - Yu. A. Melentsova AU - G. N. Mil'shtein TI - Optimal estimation of the interval of solvability of a multipoint boundary value problem JO - Differencialʹnye uravneniâ PY - 1974 SP - 1630 EP - 1641 VL - 10 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1974_10_9_a8/ LA - ru ID - DE_1974_10_9_a8 ER -