Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1961_138_4_a16, author = {R. N. Shcherbakov}, title = {Non-holonomic $W$~congruences}, journal = {Doklady Akademii Nauk}, pages = {802--804}, publisher = {mathdoc}, volume = {138}, number = {4}, year = {1961}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1961_138_4_a16/} }
R. N. Shcherbakov. Non-holonomic $W$~congruences. Doklady Akademii Nauk, Tome 138 (1961) no. 4, pp. 802-804. http://geodesic.mathdoc.fr/item/DAN_1961_138_4_a16/