@article{Hughes02:1,
  title = {Some Co-Birkhoff Type Theorems},
  author = {Jesse Hughes},
  year = {2002},
  url = {http://www.elsevier.com/gej-ng/31/29/23/117/54/show/Products/notes/index.htt#006},
  researchr = {https://researchr.org/publication/Hughes02%3A1},
  cites = {0},
  citedby = {0},
  journal = {Electronic Notes in Theoretical Computer Science},
  volume = {65},
  number = {1},
  pages = {92-111},
}