@article{JRAM_1985__361_152759,
     author = {F. Sommen},
     title = {Monogenic functions on surfaces.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {145--161},
     publisher = {mathdoc},
     volume = {361},
     year = {1985},
     zbl = {0557.30042},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1985__361_152759/}
}