@article{GDZPPN002340690, title = {Unknotting tunnels in hyperbolic 3-manifolds.}, journal = {Mathematische Annalen}, volume = {302}, year = {1995}, pages = {177-196}, zbl = {0830.57009}, url = {http://dml.mathdoc.fr/item/GDZPPN002340690} }
Adams, Colin. Unknotting tunnels in hyperbolic 3-manifolds.. Mathematische Annalen, Tome 302 (1995) pp. 177-196. http://gdmltest.u-ga.fr/item/GDZPPN002340690/