@article{JRAM_1993__443_153563,
     author = {Riccardo Salvati Manni},
     title = {Maps defined by {Thetanullwerte.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {141--150},
     publisher = {mathdoc},
     volume = {443},
     year = {1993},
     zbl = {0806.11025},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1993__443_153563/}
}