@article{1178229842, author = {Olszak, Zbigniew}, title = {On contact metric manifolds}, journal = {Tohoku Math. J. (2)}, volume = {31}, number = {4}, year = {1979}, pages = { 247-253}, language = {en}, url = {http://dml.mathdoc.fr/item/1178229842} }
Olszak, Zbigniew. On contact metric manifolds. Tohoku Math. J. (2), Tome 31 (1979) no. 4, pp. 247-253. http://gdmltest.u-ga.fr/item/1178229842/