@article{Propp20,
  title = {The Combinatorics of Frieze Patterns and Markoff Numbers},
  author = {James Propp},
  year = {2020},
  url = {http://math.colgate.edu/~integers/u12/u12.Abstract.html},
  researchr = {https://researchr.org/publication/Propp20},
  cites = {0},
  citedby = {0},
  journal = {Integers},
  volume = {20},
}