TY  - RPRT
TI  - Conditioned suppression and variable ratio reinforcement.
AU  - D O Lyon
AU  - M Felton
PY  - 1966
DO  - 10.1901/jeab.1966.9-245
UR  - https://pubmed.ncbi.nlm.nih.gov/5932108/
ID  - 5932108
ER  -