TY - JOUR AU - P. E. Tovstik TI - Integrals of a linear equation of order $m+n$ with a small parameter multiplying the derivatives JO - Differencialʹnye uravneniâ PY - 1970 SP - 989 EP - 999 VL - 6 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1970_6_6_a4/ LA - ru ID - DE_1970_6_6_a4 ER -