Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MT_1995_29_a1, author = {S. K. Vodopyanov and V. M. Chernikov}, title = {Sobolev spaces and hypoelliptic equations}, journal = {Matemati\v{c}eskie trudy}, pages = {7--62}, publisher = {mathdoc}, volume = {29}, year = {1995}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MT_1995_29_a1/} }
S. K. Vodopyanov; V. M. Chernikov. Sobolev spaces and hypoelliptic equations. Matematičeskie trudy, Tome 29 (1995), pp. 7-62. http://geodesic.mathdoc.fr/item/MT_1995_29_a1/