@article{GDZPPN002109972,
title = {Spectral geometry and scattering theory for certain complete surfaces of finite volume.},
journal = {Inventiones mathematicae},
volume = {110},
year = {1992},
pages = {265-306},
zbl = {0772.58063},
url = {http://dml.mathdoc.fr/item/GDZPPN002109972}
}
Müller, Werner. Spectral geometry and scattering theory for certain complete surfaces of finite volume.. Inventiones mathematicae, Tome 110 (1992) pp. 265-306. http://gdmltest.u-ga.fr/item/GDZPPN002109972/