@article{Santos03-0,
  title = {Problem 11019},
  author = {Bernardo Recamán Santos},
  year = {2003},
  url = {http://www.jstor.org/stable/3647913},
  researchr = {https://researchr.org/publication/Santos03-0},
  cites = {0},
  citedby = {0},
  journal = {The American Mathematical Monthly},
  volume = {110},
  number = {6},
  pages = {542},
}