@misc{indiciaee40b73533b91,
  title = {Operant conditional potentials centrally evoked at random intervals.},
  author = {J P Rosenfeld and B E Hetzler and P A Birkel and R A Kowatch and D N Antoinetti},
  year = {1976},
  doi = {10.1016/s0091-6773(76)91434-6},
  url = {https://pubmed.ncbi.nlm.nih.gov/1275852/},
  note = {Source identifier: 1275852}
}