Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1977_13_11_a17, author = {Yu. K. Lando}, title = {Normally solvable and controllable correspondences}, journal = {Differencialʹnye uravneni\^a}, pages = {2070--2075}, publisher = {mathdoc}, volume = {13}, number = {11}, year = {1977}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1977_13_11_a17/} }
Yu. K. Lando. Normally solvable and controllable correspondences. Differencialʹnye uravneniâ, Tome 13 (1977) no. 11, pp. 2070-2075. http://geodesic.mathdoc.fr/item/DE_1977_13_11_a17/