@article{DE_1999_35_12_a15,
     author = {V. I. Fomin},
     title = {The method of small regular perturbations in the investigation of singular differential equations in a {Banach} space},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1712},
     publisher = {mathdoc},
     volume = {35},
     number = {12},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1999_35_12_a15/}
}