TY  - RPRT
TI  - Concurrent drinking by pigeons on fixed-interval reinforcement schedules.
AU  - R H Dale
PY  - 1979
DO  - 10.1016/0031-9384(79)90212-9
UR  - https://pubmed.ncbi.nlm.nih.gov/523557/
ID  - 523557
ER  -