@article{DE_1995_31_5_a5,
     author = {A. M. Samoilenko and V. L. Kulik},
     title = {On the regularity of differential equations that are linearized with respect to some of the variables},
     journal = {Differencialʹnye uravneni\^a},
     pages = {773--777},
     publisher = {mathdoc},
     volume = {31},
     number = {5},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1995_31_5_a5/}
}