Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1986_22_4_a4, author = {N. I. Imranov}, title = {Boundary value problems for degenerate differential equations}, journal = {Differencialʹnye uravneni\^a}, pages = {600--607}, publisher = {mathdoc}, volume = {22}, number = {4}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1986_22_4_a4/} }
N. I. Imranov. Boundary value problems for degenerate differential equations. Differencialʹnye uravneniâ, Tome 22 (1986) no. 4, pp. 600-607. http://geodesic.mathdoc.fr/item/DE_1986_22_4_a4/