@article{1178228534, author = {Mori, Hiroshi}, title = {Rotational surfaces in a pseudo-Riemannian $3$-sphere}, journal = {Tohoku Math. J. (2)}, volume = {38}, number = {4}, year = {1986}, pages = { 29-36}, language = {en}, url = {http://dml.mathdoc.fr/item/1178228534} }
Mori, Hiroshi. Rotational surfaces in a pseudo-Riemannian $3$-sphere. Tohoku Math. J. (2), Tome 38 (1986) no. 4, pp. 29-36. http://gdmltest.u-ga.fr/item/1178228534/