@article{IM_1991__106_1_143944,
     author = {R. Froese and P. Hislop and P. Perry},
     title = {The {Laplace} operator on hyperbolic three manifolds with cusps of non-maximal rank.},
     journal = {Inventiones mathematicae},
     pages = {295--334},
     publisher = {mathdoc},
     volume = {106},
     number = {1},
     year = {1991},
     zbl = {0763.58028},
     url = {http://geodesic.mathdoc.fr/item/IM_1991__106_1_143944/}
}