@article{GDZPPN002330040,
title = {Unfoldings in Knot Theory.},
journal = {Mathematische Annalen},
volume = {277},
year = {1987},
pages = {409-440},
zbl = {0675.57010},
url = {http://dml.mathdoc.fr/item/GDZPPN002330040}
}
Neumann, Walter; Rudolph, Lee. Unfoldings in Knot Theory.. Mathematische Annalen, Tome 277 (1987) pp. 409-440. http://gdmltest.u-ga.fr/item/GDZPPN002330040/