@article{1178241288, author = {Koshikawa, Hiroaki}, title = {On the bordism groups of semi-free $S^{a}$-actions}, journal = {Tohoku Math. J. (2)}, volume = {25}, number = {4}, year = {1973}, pages = { 535-539}, language = {en}, url = {http://dml.mathdoc.fr/item/1178241288} }
Koshikawa, Hiroaki. On the bordism groups of semi-free $S^{a}$-actions. Tohoku Math. J. (2), Tome 25 (1973) no. 4, pp. 535-539. http://gdmltest.u-ga.fr/item/1178241288/