@article{GDZPPN002103435, title = {The smallest arithmetic hyperbolic three-orbi-fold.}, journal = {Inventiones mathematicae}, volume = {83}, year = {1986}, pages = {507-528}, zbl = {0643.57011}, url = {http://dml.mathdoc.fr/item/GDZPPN002103435} }
Friedman, E.; Chinburg, T. The smallest arithmetic hyperbolic three-orbi-fold.. Inventiones mathematicae, Tome 83 (1986) pp. 507-528. http://gdmltest.u-ga.fr/item/GDZPPN002103435/