@article{1102645609, author = {Ruberman, Daniel}, title = {Seifert surfaces of knots in $S^4$.}, journal = {Pacific J. Math.}, volume = {146}, number = {2}, year = {1990}, pages = { 97-116}, language = {en}, url = {http://dml.mathdoc.fr/item/1102645609} }
Ruberman, Daniel. Seifert surfaces of knots in $S^4$.. Pacific J. Math., Tome 146 (1990) no. 2, pp. 97-116. http://gdmltest.u-ga.fr/item/1102645609/