TY  - JOUR
AU  - Dubi Kelmer
AU  - Peter Sarnak
TI  - Strong spectral gaps for compact quotients of products of PSL(2,ℝ)
JO  - Journal of the European Mathematical Society
PY  - 2009
SP  - 283
EP  - 313
VL  - 11
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4171/jems/151/
DO  - 10.4171/jems/151
ID  - JEMS_2009_11_2_a3
ER  -