%0 Journal Article
%A John Dollhopf
%A Ian Goulden
%A Curtis Greene
%T Words avoiding a reflexive acyclic relation
%J The electronic journal of combinatorics
%D 2004
%V 11
%N 2
%U http://geodesic.mathdoc.fr/articles/10.37236/1885/
%R 10.37236/1885
%F 10_37236_1885