%0 Journal Article %A Rigby, J. F. %T Collineations, Correlations, Polarities, and Conics %J Canadian journal of mathematics %D 1967 %P 1027-1041 %V 19 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-094-x/ %R 10.4153/CJM-1967-094-x %F 10_4153_CJM_1967_094_x