Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1986_286_1_a11, author = {V. N. Chetverikov}, title = {The structure of integrable $C$-fields on infinitely prolonged equations}, journal = {Doklady Akademii Nauk}, pages = {54--57}, publisher = {mathdoc}, volume = {286}, number = {1}, year = {1986}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1986_286_1_a11/} }
V. N. Chetverikov. The structure of integrable $C$-fields on infinitely prolonged equations. Doklady Akademii Nauk, Tome 286 (1986) no. 1, pp. 54-57. http://geodesic.mathdoc.fr/item/DAN_1986_286_1_a11/