@misc{indiciaeff2f85970627,
  title = {Performance in concurrent interval schedules: a systematic replication.},
  author = {B Lobb and M C Davison},
  year = {1975},
  doi = {10.1901/jeab.1975.24-191},
  url = {https://pubmed.ncbi.nlm.nih.gov/16811871/},
  note = {Source identifier: 16811871}
}