%0 Journal Article
%A Drury, S.W.
%T The external vertices conjecture in case $n=4$
%J The electronic journal of linear algebra
%D 2004
%P 180-191
%V 11
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ELA_2004__11__a7/
%G en
%F ELA_2004__11__a7