TY  - JOUR
AU  - Herbert S. Wilf
TI  - The Redheffer matrix of a partially ordered set
JO  - The electronic journal of combinatorics
PY  - 2004
VL  - 11
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.37236/1867/
DO  - 10.37236/1867
ID  - 10_37236_1867
ER  -