%0 Journal Article %A Marvin Knopp %A Mark Sheingorn %T On Dirichlet series and Hecke triangle groups of infinite volume %J Acta Arithmetica %D 1996 %P 227-244 %V 76 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-76-3-227-244/ %R 10.4064/aa-76-3-227-244 %G en %F 10_4064_aa_76_3_227_244