%0 Journal Article
%A James E. Williamson
%T A Ramsey-Type Problem for Paths in Digraphs.
%J Mathematische Annalen
%D 1973
%P 117-118
%V 203
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MAN_1973__203_162432/
%F MAN_1973__203_162432