Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DAN_1985_285_2_a9, author = {V. M. Filippov}, title = {Variational principles for hypoelliptic equations}, journal = {Doklady Akademii Nauk}, pages = {302--305}, publisher = {mathdoc}, volume = {285}, number = {2}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1985_285_2_a9/} }
V. M. Filippov. Variational principles for hypoelliptic equations. Doklady Akademii Nauk, Tome 285 (1985) no. 2, pp. 302-305. http://geodesic.mathdoc.fr/item/DAN_1985_285_2_a9/