%0 Journal Article
%A W.L. Edge
%T Some implications of the geometry of the 21-point plane.
%J Mathematische Zeitschrift
%D 1965
%P 348-362
%V 87
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1965__87_170385/
%F MZ_1965__87_170385