TY  - RPRT
TI  - Maximizing present value: A model to explain why moderate response rates obtain on variable-interval schedules.
AU  - A Silberberg
AU  - F R Warren-Boulton
AU  - T Asano
PY  - 1988
DO  - 10.1901/jeab.1988.49-331
UR  - https://pubmed.ncbi.nlm.nih.gov/16812543/
ID  - 16812543
ER  -