@article{GDZPPN00222979X, title = {Parametrization of reflection groups acting in a disk.}, journal = {Manuscripta mathematica}, volume = {64}, year = {1989}, pages = {135-154}, zbl = {0683.30037}, url = {http://dml.mathdoc.fr/item/GDZPPN00222979X} }
Seppälä, Mika; Sorvali, Tuomas. Parametrization of reflection groups acting in a disk.. Manuscripta mathematica, Tome 64 (1989) pp. 135-154. http://gdmltest.u-ga.fr/item/GDZPPN00222979X/