@article{05188499,
title = {Combinatorial identities by way of Wilf's multigraph model.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {2006},
year = {2006},
doi = {10.1155/IJMMS/2006/96327},
zbl = {1122.05007},
language = {en},
url = {http://dml.mathdoc.fr/item/05188499}
}
Friedman, Theresa L.; Klingsberg, Paul. Combinatorial identities by way of Wilf's multigraph model.. International Journal of Mathematics and Mathematical Sciences, Tome 2006 (2006) . doi : 10.1155/IJMMS/2006/96327. http://gdmltest.u-ga.fr/item/05188499/