@misc{indiciaeccaf1f53f7a8,
  title = {Dependent Probabilities and Spaces (L).},
  author = {G Birkhoff},
  year = {1938},
  doi = {10.1073/pnas.24.3.154},
  url = {https://pubmed.ncbi.nlm.nih.gov/16588211/},
  note = {Source identifier: 16588211}
}