@misc{indiciaed66143ab096b,
  title = {A multivariate rate equation for variable-interval performance.},
  author = {J J McDowell and R Kessel},
  year = {1979},
  doi = {10.1901/jeab.1979.31-267},
  url = {https://pubmed.ncbi.nlm.nih.gov/16812130/},
  note = {Source identifier: 16812130}
}