@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/