%0 Journal Article
%A Phillips, R.
%A Sarnak, P.
%T Perturbation theory for the Laplacian on automorphic functions
%J Journal of the American Mathematical Society
%D 1992
%P 1-32
%V 05
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1992-1127079-X/
%R 10.1090/S0894-0347-1992-1127079-X
%F 10_1090_S0894_0347_1992_1127079_X