@article{1178243242, author = {Okumura, Masafumi}, title = {Certain hypersurfaces of an odd dimensional sphere}, journal = {Tohoku Math. J. (2)}, volume = {19}, number = {4}, year = {1967}, pages = { 381-395}, language = {en}, url = {http://dml.mathdoc.fr/item/1178243242} }
Okumura, Masafumi. Certain hypersurfaces of an odd dimensional sphere. Tohoku Math. J. (2), Tome 19 (1967) no. 4, pp. 381-395. http://gdmltest.u-ga.fr/item/1178243242/