@misc{indiciae07c7c8291c79,
  title = {A negative partition relation.},
  author = {A Hajnal},
  year = {1971},
  doi = {10.1073/pnas.68.1.142},
  url = {https://pubmed.ncbi.nlm.nih.gov/16591893/},
  note = {Source identifier: 16591893}
}