@article{Woodall11,
  title = {Defective choosability of graphs in surfaces},
  author = {Douglas R. Woodall},
  year = {2011},
  url = {http://www.uz.zgora.pl/discuss/gt/31_3/gt31-780.htm},
  tags = {graph-rewriting, rewriting},
  researchr = {https://researchr.org/publication/Woodall11},
  cites = {0},
  citedby = {0},
  journal = {Discussiones Mathematicae Graph Theory},
  volume = {31},
  number = {3},
  pages = {441-459},
}