Ilya Averbouch, Benny Godlin, Johann A. Makowsky. An extension of the bivariate chromatic polynomial. Eur. J. Comb., 31(1):1-17, 2010. [doi]
@article{AverbouchGM10,
title = {An extension of the bivariate chromatic polynomial},
author = {Ilya Averbouch and Benny Godlin and Johann A. Makowsky},
year = {2010},
doi = {10.1016/j.ejc.2009.05.006},
url = {http://dx.doi.org/10.1016/j.ejc.2009.05.006},
researchr = {https://researchr.org/publication/AverbouchGM10},
cites = {0},
citedby = {0},
journal = {Eur. J. Comb.},
volume = {31},
number = {1},
pages = {1-17},
}