@article{1102352057,
author = {Maclachlan, C.},
title = {Triangle subgroups of hyperbolic tetrahedral groups.},
journal = {Pacific J. Math.},
volume = {176},
number = {2},
year = {1996},
pages = { 195-203},
language = {en},
url = {http://dml.mathdoc.fr/item/1102352057}
}
Maclachlan, C. Triangle subgroups of hyperbolic tetrahedral groups.. Pacific J. Math., Tome 176 (1996) no. 2, pp. 195-203. http://gdmltest.u-ga.fr/item/1102352057/