@misc{indiciaecdc57ea4b59a,
  title = {Vigilance as a factor in reinforcement.},
  author = {G W BOGUSLAVSKY},
  year = {1957},
  doi = {10.1080/00221325.1957.10533034},
  url = {https://pubmed.ncbi.nlm.nih.gov/13475722/},
  note = {Source identifier: 13475722}
}