Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1972_8_12_a19, author = {V. I. Zubov}, title = {The local solvability of a boundary value problem for ordinary differential equations}, journal = {Differencialʹnye uravneni\^a}, pages = {2251}, publisher = {mathdoc}, volume = {8}, number = {12}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1972_8_12_a19/} }
V. I. Zubov. The local solvability of a boundary value problem for ordinary differential equations. Differencialʹnye uravneniâ, Tome 8 (1972) no. 12. http://geodesic.mathdoc.fr/item/DE_1972_8_12_a19/