@article{IM_1979__52_142640,
     author = {J.J. Duistermaat and J.A.C. Kolk},
     title = {Spectra of {Compact} {Locally} {Symmetric} {Manifolds} of {Negative} {Curvature.}},
     journal = {Inventiones mathematicae},
     pages = {27--94},
     publisher = {mathdoc},
     volume = {52},
     year = {1979},
     zbl = {0434.58019},
     url = {http://geodesic.mathdoc.fr/item/IM_1979__52_142640/}
}