Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1982_31_1_a13, author = {A. F. Solov'ev}, title = {Second fundamental form of a distribution}, journal = {Matemati\v{c}eskie zametki}, pages = {139--146}, publisher = {mathdoc}, volume = {31}, number = {1}, year = {1982}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1982_31_1_a13/} }
A. F. Solov'ev. Second fundamental form of a distribution. Matematičeskie zametki, Tome 31 (1982) no. 1, pp. 139-146. http://geodesic.mathdoc.fr/item/MZM_1982_31_1_a13/