@article{02175920, title = {Counterexamples to the Neggers-Stanley conjecture.}, journal = {Electronic Research Announcements of the American Mathematical Society [electronic only]}, volume = {10}, year = {2004}, pages = {155-158}, doi = {10.1090/S1079-6762-04-00140-4}, zbl = {1068.06002}, language = {en}, url = {http://dml.mathdoc.fr/item/02175920} }
Brändén, Petter. Counterexamples to the Neggers-Stanley conjecture.. Electronic Research Announcements of the American Mathematical Society [electronic only], Tome 10 (2004) pp. 155-158. doi : 10.1090/S1079-6762-04-00140-4. http://gdmltest.u-ga.fr/item/02175920/