@article{IM_1986__83_143313,
     author = {Don Zagier},
     title = {Hyperbolic manifolds and special values of {Dedekind} zeta-functions.},
     journal = {Inventiones mathematicae},
     pages = {285--302},
     publisher = {mathdoc},
     volume = {83},
     year = {1986},
     zbl = {0591.12014},
     url = {http://geodesic.mathdoc.fr/item/IM_1986__83_143313/}
}