@article{DE_1965_1_9_a2,
     author = {B. F. Bylov},
     title = {Transformation of time in problems of stability with respect to the first approximation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1149--1154},
     publisher = {mathdoc},
     volume = {1},
     number = {9},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1965_1_9_a2/}
}