@article{DE_2001_37_12_a4,
     author = {A. Ya. Lepin and A. D. Myshkis},
     title = {Generalized {Bernstein} {Conditions} for {Systems} of {Ordinary} {Differential} {Equations}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1612--1617},
     publisher = {mathdoc},
     volume = {37},
     number = {12},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2001_37_12_a4/}
}