@article{DE_1969_5_3_a15,
     author = {B. F. Bylov},
     title = {The symmetry property of the almost reducibility concept},
     journal = {Differencialʹnye uravneni\^a},
     pages = {556--559},
     publisher = {mathdoc},
     volume = {5},
     number = {3},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1969_5_3_a15/}
}