TY  - JOUR
AU  - Lauter, Robert
AU  - Nistor, Victor
TI  - On spectra of geometric operators on open manifolds and differentiable groupoids
JO  - Electronic research announcements of the American Mathematical Society
PY  - 2001
SP  - 45
EP  - 53
VL  - 07
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-01-00093-2/
DO  - 10.1090/S1079-6762-01-00093-2
ID  - ERAAMS_2001_07_a6
ER  -