@article{GDZPPN002435772,
title = {The ?-orbifold Group of a Link.},
journal = {Mathematische Zeitschrift},
volume = {199},
year = {1988},
pages = {187-208},
zbl = {0663.57006},
url = {http://dml.mathdoc.fr/item/GDZPPN002435772}
}
Zimmermann, Bruno; Boileau, Michel. The ?-orbifold Group of a Link.. Mathematische Zeitschrift, Tome 199 (1988) pp. 187-208. http://gdmltest.u-ga.fr/item/GDZPPN002435772/