@article{GDZPPN002381168,
title = {Schlingknoten},
journal = {Mathematische Zeitschrift},
volume = {52},
year = {1950},
pages = {62-80},
language = {en},
url = {http://dml.mathdoc.fr/item/GDZPPN002381168}
}
Seifert, H. Schlingknoten. Mathematische Zeitschrift, Tome 52 (1950) pp. 62-80. http://gdmltest.u-ga.fr/item/GDZPPN002381168/