@misc{indiciaeb9311ecff541,
  title = {[The objective frequency decrement test (OFDT): a new objective EEG-test for determination of the difference limen for frequencies (author's transl)].},
  author = {R Brix},
  year = {1975},
  url = {https://pubmed.ncbi.nlm.nih.gov/128670/},
  note = {Source identifier: 128670}
}