@article{DE_1965_1_12_a14,
     author = {A. V. Dragilev},
     title = {A certain theorem and a problem from the qualitative theory of differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1679--1681},
     publisher = {mathdoc},
     volume = {1},
     number = {12},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1965_1_12_a14/}
}