@article{GDZPPN002064863, title = {Braided surfaces and Seifert ribbons for closed braids.}, journal = {Commentarii mathematici Helvetici}, volume = {58}, year = {1983}, pages = {1-37}, zbl = {0522.57017}, url = {http://dml.mathdoc.fr/item/GDZPPN002064863} }
Rudolph, Lee. Braided surfaces and Seifert ribbons for closed braids.. Commentarii mathematici Helvetici, Tome 58 (1983) pp. 1-37. http://gdmltest.u-ga.fr/item/GDZPPN002064863/