@misc{indiciaeb212013aff22,
  title = {EXTENDED TRAINING EXTINCTION EFFECT UNDER MASSED AND SPACED EXTINCTION TRAILS.},
  author = {D BIRCH},
  year = {1965},
  doi = {10.1037/h0022336},
  url = {https://pubmed.ncbi.nlm.nih.gov/14343261/},
  note = {Source identifier: 14343261}
}