%0 Journal Article %A Kummer, Martin %A Churchill, Richard C. %A Rod, David L. %T On a Result of Bruns %J Canadian mathematical bulletin %D 1990 %P 175-180 %V 33 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1990-029-9/ %R 10.4153/CMB-1990-029-9 %F 10_4153_CMB_1990_029_9