@article{10_37236_8240,
     author = {Danielle Cox and Christopher Duffy},
     title = {Chromatic polynomials of oriented graphs},
     journal = {The electronic journal of combinatorics},
     year = {2019},
     volume = {26},
     number = {3},
     doi = {10.37236/8240},
     zbl = {1420.05082},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/8240/}
}