Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1985_38_3_a11, author = {A. F. Solov'ev}, title = {Curvature of a hyperdistribution and contact metric manifolds}, journal = {Matemati\v{c}eskie zametki}, pages = {450--462}, publisher = {mathdoc}, volume = {38}, number = {3}, year = {1985}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1985_38_3_a11/} }
A. F. Solov'ev. Curvature of a hyperdistribution and contact metric manifolds. Matematičeskie zametki, Tome 38 (1985) no. 3, pp. 450-462. http://geodesic.mathdoc.fr/item/MZM_1985_38_3_a11/