@article{03747190, title = {A generalization of the dichromatic polynomial of a graph.}, journal = {International Journal of Mathematics and Mathematical Sciences}, volume = {4}, year = {1981}, pages = {725-729}, doi = {10.1155/S0161171281000550}, zbl = {0476.05071}, language = {en}, url = {http://dml.mathdoc.fr/item/03747190} }
Farrell, E.J. A generalization of the dichromatic polynomial of a graph.. International Journal of Mathematics and Mathematical Sciences, Tome 4 (1981) pp. 725-729. doi : 10.1155/S0161171281000550. http://gdmltest.u-ga.fr/item/03747190/