An Urn Problem with Labeled and Unlabeled Balls: 11181

M. N. Deshpande, et al.. An Urn Problem with Labeled and Unlabeled Balls: 11181. The American Mathematical Monthly, 114(7):642, 2007. [doi]

@article{Deshpandea07,
  title = {An Urn Problem with Labeled and Unlabeled Balls: 11181},
  author = {M. N. Deshpande and et al.},
  year = {2007},
  url = {http://www.jstor.org/stable/27642288},
  researchr = {https://researchr.org/publication/Deshpandea07},
  cites = {0},
  citedby = {0},
  journal = {The American Mathematical Monthly},
  volume = {114},
  number = {7},
  pages = {642},
}