@article{MAN_1931__105_159527,
     author = {M. Grelbcke},
     title = {Zum {Waringschen} {Problem}},
     journal = {Mathematische Annalen},
     pages = {637--652},
     publisher = {mathdoc},
     volume = {105},
     year = {1931},
     zbl = {57.0214.02},
     url = {http://geodesic.mathdoc.fr/item/MAN_1931__105_159527/}
}