%0 Journal Article %A Scherk, Peter %T On a Note by H. Schwerdtfeger %J Canadian mathematical bulletin %D 1958 %P 181-182 %V 1 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1958-020-9/ %R 10.4153/CMB-1958-020-9 %F 10_4153_CMB_1958_020_9