@article{04203274,
title = {Geometric presentations of classical knot groups.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {14},
year = {1991},
pages = {289-292},
doi = {10.1155/S0161171291000339},
zbl = {0728.57003},
language = {en},
url = {http://dml.mathdoc.fr/item/04203274}
}
Erbland, John; Guterriez, Mauricio. Geometric presentations of classical knot groups.. International Journal of Mathematics and Mathematical Sciences, Tome 14 (1991) pp. 289-292. doi : 10.1155/S0161171291000339. http://gdmltest.u-ga.fr/item/04203274/