%0 Journal Article %A R. Froese %A P. Hislop %A P. Perry %T The Laplace operator on hyperbolic three manifolds with cusps of non-maximal rank. %J Inventiones mathematicae %D 1991 %P 295-334 %V 106 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1991__106_1_143944/ %F IM_1991__106_1_143944