@article{JRAM_1918__148_149474,
     author = {Josef K\"ursch\'ak},
     title = {\"Uber spezielle {Funktionenreihen.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {113--115},
     year = {1918},
     volume = {148},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1918__148_149474/}
}