@article{10_37236_824,
     author = {Serguei Norine and Xuding Zhu},
     title = {Circular degree choosability},
     journal = {The electronic journal of combinatorics},
     year = {2008},
     volume = {15},
     doi = {10.37236/824},
     zbl = {1158.05319},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/824/}
}