@misc{indiciaed9a09565baea,
  title = {Variations on a theme.},
  author = {A E Nolte},
  year = {1968},
  doi = {10.1111/j.1746-1561.1968.tb07027.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/5187157/},
  note = {Source identifier: 5187157}
}