@misc{indiciae4c644aa7f2eb,
  title = {Czechoslovakia: extend a hand.},
  author = {L Nadel},
  year = {1969},
  doi = {10.1126/science.164.3880.629-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/5778016/},
  note = {Source identifier: 5778016}
}