@article{10_4153_CJM_1967_094_x, author = {Rigby, J. F.}, title = {Collineations, {Correlations,} {Polarities,} and {Conics}}, journal = {Canadian journal of mathematics}, pages = {1027--1041}, year = {1967}, volume = {19}, number = {1}, doi = {10.4153/CJM-1967-094-x}, url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1967-094-x/} }