@article{Guo99-4,
  title = {5},
  author = {Dachang Guo},
  year = {1999},
  url = {http://ajc.maths.uq.edu.au/pdf/19/ocr-ajc-v19-p37.pdf},
  researchr = {https://researchr.org/publication/Guo99-4},
  cites = {0},
  citedby = {0},
  journal = {Australasian J. Combinatorics},
  volume = {19},
  pages = {37-46},
}