@article{MZ_1974__140_172132,
     author = {Ernst Heintze},
     title = {Compact {Quotients} of {Homogeneous} {Negatively} {Curved} {Riemannian} {Manifolds.}},
     journal = {Mathematische Zeitschrift},
     pages = {79--80},
     publisher = {mathdoc},
     volume = {140},
     year = {1974},
     zbl = {0293.53019},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__140_172132/}
}