%0 Journal Article %A Westwick, Roy %T Linear Transformations on Grassmann Spaces %J Canadian journal of mathematics %D 1969 %P 414-417 %V 21 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1969-045-6/ %R 10.4153/CJM-1969-045-6 %F 10_4153_CJM_1969_045_6