@article{10_4153_CMB_1958_020_9,
     author = {Scherk, Peter},
     title = {On a {Note} by {H.} {Schwerdtfeger}},
     journal = {Canadian mathematical bulletin},
     pages = {181--182},
     year = {1958},
     volume = {1},
     number = {3},
     doi = {10.4153/CMB-1958-020-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CMB-1958-020-9/}
}