TY - JOUR AU - B. F. Bylov TI - Transformation of time in problems of stability with respect to the first approximation JO - Differencialʹnye uravneniâ PY - 1965 SP - 1149 EP - 1154 VL - 1 IS - 9 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1965_1_9_a2/ LA - ru ID - DE_1965_1_9_a2 ER -