@article{GDZPPN002068753,
title = {Homotopy and isotopy in dimension three.},
journal = {Commentarii mathematici Helvetici},
volume = {68},
year = {1993},
pages = {341-364},
zbl = {0805.57008},
url = {http://dml.mathdoc.fr/item/GDZPPN002068753}
}
Hass, Joel; Scott, Peter. Homotopy and isotopy in dimension three.. Commentarii mathematici Helvetici, Tome 68 (1993) pp. 341-364. http://gdmltest.u-ga.fr/item/GDZPPN002068753/