%0 Journal Article %A Cofman, Judita %T Baer Subplanes in Finite Projective and Affine Planes %J Canadian journal of mathematics %D 1972 %P 90-97 %V 24 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-011-4/ %R 10.4153/CJM-1972-011-4 %F 10_4153_CJM_1972_011_4