@misc{indiciae7760c15b9154,
  title = {The challenge agead.},
  author = {C Cavero},
  year = {1971},
  doi = {10.1111/j.1542-2011.1971.tb00064.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5208475/},
  note = {Source identifier: 5208475}
}