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@article{MZ_1980__175_173031, author = {Thomas A. Metzger}, title = {On the {Non-Vanishing} of {Certain} {Poincar\'e} {Series.}}, journal = {Mathematische Zeitschrift}, pages = {165--170}, publisher = {mathdoc}, volume = {175}, year = {1980}, zbl = {0444.30036}, url = {http://geodesic.mathdoc.fr/item/MZ_1980__175_173031/} }
Thomas A. Metzger. On the Non-Vanishing of Certain Poincaré Series.. Mathematische Zeitschrift, Tome 175 (1980), pp. 165-170. http://geodesic.mathdoc.fr/item/MZ_1980__175_173031/