@article{MOMA_1962__66_177151,
     author = {Wolfgang Schwarz},
     title = {\"Uber die {Summe} ... und verwandte {Probleme.}},
     journal = {Monatshefte f\"ur Mathematik},
     pages = {43--54},
     publisher = {mathdoc},
     volume = {66},
     year = {1962},
     zbl = {0101.03701},
     url = {http://geodesic.mathdoc.fr/item/MOMA_1962__66_177151/}
}