@article{05132803,
title = {Characterization of },
journal = {The Electronic Journal of Combinatorics [electronic only]},
volume = {13},
year = {2006},
zbl = {1110.05104},
language = {en},
url = {http://dml.mathdoc.fr/item/05132803}
}
Chen, Guantao; Hutchinson, Joan P.; Keating, Ken; Shen, Jian. Characterization of . The Electronic Journal of Combinatorics [electronic only], Tome 13 (2006) . http://gdmltest.u-ga.fr/item/05132803/