@article{Edwards13,
  title = {Preface},
  author = {Keith Edwards},
  year = {2013},
  doi = {10.1016/j.disc.2013.01.009},
  url = {http://dx.doi.org/10.1016/j.disc.2013.01.009},
  researchr = {https://researchr.org/publication/Edwards13},
  cites = {0},
  citedby = {0},
  journal = {Discrete Mathematics},
  volume = {313},
  number = {11},
  pages = {1131},
}