TY  - RPRT
TI  - Molar And Molecular Control In Variable-interval And Variable-ratio Schedules.
AU  - M Cole
PY  - 1999
DO  - 10.1901/jeab.1999.71-319
UR  - https://pubmed.ncbi.nlm.nih.gov/16812898/
ID  - 16812898
ER  -