TY  - RPRT
TI  - Concurrent variable-interval variable-ratio schedules can provide only weak evidence for matching.
AU  - J M Ziriax
AU  - A Silberberg
PY  - 1984
DO  - 10.1901/jeab.1984.41-83
UR  - https://pubmed.ncbi.nlm.nih.gov/16812360/
ID  - 16812360
ER  -