TY  - RPRT
TI  - Feedback functions for variable-interval reinforcement.
AU  - J A Nevin
AU  - W M Baum
PY  - 1980
DO  - 10.1901/jeab.1980.34-207
UR  - https://pubmed.ncbi.nlm.nih.gov/16812187/
ID  - 16812187
ER  -