Independent generators for congruence subgroups of Hecke groups.
Lang, M.-L. ; Lim, C.-H. ; Tan, S.-P.
Mathematische Zeitschrift, Tome 220 (1995), p. 569-594 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1995-01-01
EUDML-ID : urn:eudml:doc:174827 
@article{GDZPPN002444704,
     title = {Independent generators for congruence subgroups of Hecke groups.},
     journal = {Mathematische Zeitschrift},
     volume = {220},
     year = {1995},
     pages = {569-594},
     zbl = {0845.11017},
     url = {http://dml.mathdoc.fr/item/GDZPPN002444704}
}

Lang, M.-L.; Lim, C.-H.; Tan, S.-P. Independent generators for congruence subgroups of Hecke groups.. Mathematische Zeitschrift, Tome 220 (1995) pp. 569-594. http://gdmltest.u-ga.fr/item/GDZPPN002444704/