%0 Journal Article
%A N.S. MENDELSOHN
%A D.M. JOHNSON
%T Extended Triple Systems (Short Communication)
%J Aequationes mathematicae
%D 1971
%P 326-326
%V 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1971__7_136268/
%F AM2_1971__7_136268