@article{DE_1999_35_4_a2,
     author = {B. S. Kalitin},
     title = {$B$-stability and the {Florio--Seibert} problem},
     journal = {Differencialʹnye uravneni\^a},
     pages = {453--463},
     publisher = {mathdoc},
     volume = {35},
     number = {4},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1999_35_4_a2/}
}