@article{DE_2003_39_3_a18,
     author = {A. V. Kostin},
     title = {Generalized {Stepanov} {Spaces} and {Evolution} {Equations}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {421--422},
     publisher = {mathdoc},
     volume = {39},
     number = {3},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2003_39_3_a18/}
}