%0 Journal Article
%A J.F. Rigby
%T Collineations on Quadrilaterals in Projective Planes. (Short Communication).
%J Aequationes mathematicae
%D 1968
%P 318-320
%V 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1968__1_135996/
%F AM2_1968__1_135996