@article{GDZPPN002414740, title = {On the Conjugacy Problem for Knot Groups.}, journal = {Mathematische Zeitschrift}, volume = {136}, year = {1974}, pages = {273-294}, zbl = {0276.20033}, url = {http://dml.mathdoc.fr/item/GDZPPN002414740} }
Appel, Kennth I. On the Conjugacy Problem for Knot Groups.. Mathematische Zeitschrift, Tome 136 (1974) pp. 273-294. http://gdmltest.u-ga.fr/item/GDZPPN002414740/