@article{1200691079, author = {Yajima, Takeshi}, title = {On simply knotted spheres in $R\sp4$}, journal = {Osaka J. Math.}, volume = {1}, number = {1}, year = {1964}, pages = { 133-152}, language = {en}, url = {http://dml.mathdoc.fr/item/1200691079} }
Yajima, Takeshi. On simply knotted spheres in $R\sp4$. Osaka J. Math., Tome 1 (1964) no. 1, pp. 133-152. http://gdmltest.u-ga.fr/item/1200691079/