TY  - RPRT
TI  - Behavioral contrast in chained schedules.
AU  - R N Wilton
AU  - R A Gay
PY  - 1969
DO  - 10.1901/jeab.1969.12-905
UR  - https://pubmed.ncbi.nlm.nih.gov/16811418/
ID  - 16811418
ER  -