TY - JOUR AU - A. Ya. Lepin AU - A. D. Myshkis TI - Existence of solutions of a boundary value problem for an ordinary nonlinear differential equation of the $n$th order JO - Doklady Akademii Nauk PY - 1966 SP - 16 EP - 19 VL - 169 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1966_169_1_a2/ LA - ru ID - DAN_1966_169_1_a2 ER -