%0 Journal Article %A Brešar, Matej %A Šemrl, Peter %T Normal-Preserving Linear Mappings %J Canadian mathematical bulletin %D 1994 %P 306-309 %V 37 %N 3 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1994-046-1/ %R 10.4153/CMB-1994-046-1 %F 10_4153_CMB_1994_046_1