@article{1077296368,
author = {Christian, Ulrich},
title = {\"Uber die Scatteringmatrix elliptischer Modulgruppen},
journal = {Duke Math. J.},
volume = {64},
number = {1},
year = {1991},
pages = { 479-509},
language = {de},
url = {http://dml.mathdoc.fr/item/1077296368}
}
Christian, Ulrich. Über die Scatteringmatrix elliptischer Modulgruppen. Duke Math. J., Tome 64 (1991) no. 1, pp. 479-509. http://gdmltest.u-ga.fr/item/1077296368/