TY  - RPRT
TI  - Time limits for completing fixed ratios. III. Stimulus variables.
AU  - A J Decasper
AU  - M D Zeiler
PY  - 1974
DO  - 10.1901/jeab.1974.22-285
UR  - https://pubmed.ncbi.nlm.nih.gov/16811794/
ID  - 16811794
ER  -