@article{DE_1970_6_3_a6,
     author = {N. A. Ivanov},
     title = {Almost differentiability, with respect to parameters, of the solutions of a certain differential equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {443--453},
     publisher = {mathdoc},
     volume = {6},
     number = {3},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1970_6_3_a6/}
}