@misc{indiciaee442f1fe5a2b,
  title = {[Prof. Dr. Vratislav Jonás, DrSc. died].},
  author = {L Hloucal},
  year = {1968},
  url = {https://pubmed.ncbi.nlm.nih.gov/4875075/},
  note = {Source identifier: 4875075}
}