@article{JRAM_1985__360_152747,
     author = {J. Elstrodt and F. Grunewald},
     title = {Eisenstein series on three-dimensional hyperbolic space and imaginary quadratic number fields.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {160--213},
     publisher = {mathdoc},
     volume = {360},
     year = {1985},
     zbl = {0555.10012},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1985__360_152747/}
}