@article{02057279, title = {The virtual Haken conjecture: Experiments and examples.}, journal = {Geometry \& Topology}, volume = {7}, year = {2003}, pages = {399-441}, doi = {10.2140/gt.2003.7.399}, zbl = {1037.57015}, language = {en}, url = {http://dml.mathdoc.fr/item/02057279} }
Dunfield, Nathan M.; Thurston, William P. The virtual Haken conjecture: Experiments and examples.. Geometry & Topology, Tome 7 (2003) pp. 399-441. doi : 10.2140/gt.2003.7.399. http://gdmltest.u-ga.fr/item/02057279/