TY  - RPRT
TI  - Eccentric stimuli on multiple fixed-interval schedules.
AU  - J E Kello
AU  - N K Innis
AU  - J E Staddon
PY  - 1975
DO  - 10.1901/jeab.1975.23-233
UR  - https://pubmed.ncbi.nlm.nih.gov/16811844/
ID  - 16811844
ER  -