@article{DE_1995_31_6_a0,
     author = {S. V. Bogatyrev},
     title = {Separation of motions in some classes of differential systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {923--933},
     publisher = {mathdoc},
     volume = {31},
     number = {6},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1995_31_6_a0/}
}