@misc{indiciae70340f7f0c67,
  title = {Infinite games and analytic sets.},
  author = {D Blackwell},
  year = {1967},
  doi = {10.1073/pnas.58.5.1836},
  url = {https://pubmed.ncbi.nlm.nih.gov/16578685/},
  note = {Source identifier: 16578685}
}