%0 Journal Article
%A Herbert S. Wilf
%T The Redheffer matrix of a partially ordered set
%J The electronic journal of combinatorics
%D 2004
%V 11
%N 2
%U http://geodesic.mathdoc.fr/articles/10.37236/1867/
%R 10.37236/1867
%F 10_37236_1867