TY  - JOUR
AU  - Phillips, R.
AU  - Sarnak, P.
TI  - Perturbation theory for the Laplacian on automorphic functions
JO  - Journal of the American Mathematical Society
PY  - 1992
SP  - 1
EP  - 32
VL  - 05
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1992-1127079-X/
DO  - 10.1090/S0894-0347-1992-1127079-X
ID  - 10_1090_S0894_0347_1992_1127079_X
ER  -