@article{JRAM_1879__88_148435,
     author = {Hermann Stahl},
     title = {Das {Additionstheorem} der {...-Function} mit p {Argumenten.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {117--130},
     publisher = {mathdoc},
     volume = {88},
     year = {1879},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1879__88_148435/}
}