%0 Journal Article
%A M.S. Macphail
%A S.C. Chang
%A A. Snyder
%T Constency and Replaceability for Conull Matrices.
%J Mathematische Zeitschrift
%D 1968
%P 208-212
%V 105
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1968__105_170978/
%F MZ_1968__105_170978