TY - JOUR AU - V. F. Butuzov TI - On the question of the asymptotics of solutions to integro-differential equations with a small parameter in front of the derivative JO - Differencialʹnye uravneniâ PY - 1966 SP - 391 EP - 406 VL - 2 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1966_2_3_a11/ LA - ru ID - DE_1966_2_3_a11 ER -