@article{1138036372, author = {Sakamoto, Kunio and Takemura, Yoshiya}, title = {Curvature invariants of CR-manifolds}, journal = {Kodai Math. J.}, volume = {4}, number = {1}, year = {1981}, pages = { 251-265}, language = {en}, url = {http://dml.mathdoc.fr/item/1138036372} }
Sakamoto, Kunio; Takemura, Yoshiya. Curvature invariants of CR-manifolds. Kodai Math. J., Tome 4 (1981) no. 1, pp. 251-265. http://gdmltest.u-ga.fr/item/1138036372/