%0 Journal Article
%A O'Shaughnessy, C. D.
%T On the Block Structure of Quartic Designs
%J Canadian mathematical bulletin
%D 1971
%P 377-389
%V 14
%N 3
%U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1971-068-3/
%R 10.4153/CMB-1971-068-3
%F 10_4153_CMB_1971_068_3