TY  - JOUR
AU  - Leonard J. Schulman
TI  - The quantifier semigroup for bipartite graphs
JO  - The electronic journal of combinatorics
PY  - 2011
VL  - 18
IS  - 1
UR  - http://geodesic.mathdoc.fr/articles/10.37236/610/
DO  - 10.37236/610
ID  - 10_37236_610
ER  -