TY  - RPRT
TI  - Behavioral contrast without response-rate reduction.
AU  - M S Halliday
AU  - R A Boakes
PY  - 1974
DO  - 10.1901/jeab.1974.22-453
UR  - https://pubmed.ncbi.nlm.nih.gov/16811808/
ID  - 16811808
ER  -