@article{00902735,
title = {A trace-class rigidity theorem for Kleinian groups.},
journal = {Annales Academiae Scientiarum Fennicae. Mathematica},
volume = {20},
year = {1995},
pages = {251-257},
zbl = {0861.57017},
language = {en},
url = {http://dml.mathdoc.fr/item/00902735}
}
Perry, Peter A. A trace-class rigidity theorem for Kleinian groups.. Annales Academiae Scientiarum Fennicae. Mathematica, Tome 20 (1995) pp. 251-257. http://gdmltest.u-ga.fr/item/00902735/