@misc{indiciae0b3398eae81e,
  title = {[The function of relaxation in systematic desensitization].},
  author = {R J Sikkel and M A Hooft and R W Ramsay},
  year = {1971},
  url = {https://pubmed.ncbi.nlm.nih.gov/5554707/},
  note = {Source identifier: 5554707}
}