@article{DE_1986_22_6_a24,
     author = {N. V. Torop},
     title = {On stationary transformations of nonautonomous differential systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1076--1077},
     publisher = {mathdoc},
     volume = {22},
     number = {6},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1986_22_6_a24/}
}