@misc{indiciae7497dd172679,
  title = {Methodological issues in alpha biofeedback training.},
  author = {S Ancoli and J Kamiya},
  year = {1978},
  doi = {10.1007/bf00998900},
  url = {https://pubmed.ncbi.nlm.nih.gov/687683/},
  note = {Source identifier: 687683}
}