@article{Russell06-4,
  title = {Problem 11201},
  author = {Robert Russell},
  year = {2006},
  url = {http://www.jstor.org/stable/27641872},
  researchr = {https://researchr.org/publication/Russell06-4},
  cites = {0},
  citedby = {0},
  journal = {The American Mathematical Monthly},
  volume = {113},
  number = {2},
  pages = {179},
}