On Hsiao's conjecture on Hecke groups.
Köhler, Günter
Mathematica Scandinavica, Tome 48 (1981), p. 56-58 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1981-01-01
EUDML-ID : urn:eudml:doc:166736 
@article{GDZPPN002356473,
     title = {On Hsiao's conjecture on Hecke groups.},
     journal = {Mathematica Scandinavica},
     volume = {48},
     year = {1981},
     pages = {56-58},
     zbl = {0463.10013},
     url = {http://dml.mathdoc.fr/item/GDZPPN002356473}
}

Köhler, Günter. On Hsiao's conjecture on Hecke groups.. Mathematica Scandinavica, Tome 48 (1981) pp. 56-58. http://gdmltest.u-ga.fr/item/GDZPPN002356473/