@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/