%0 Journal Article
%A Berlekamp, E.R.
%T On Subsets with Intersections of Even Cardinality
%J Canadian mathematical bulletin
%D 1969
%P 471-474
%V 12
%N 4
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1969-059-3/
%R 10.4153/CMB-1969-059-3
%F 10_4153_CMB_1969_059_3