TY  - RPRT
TI  - Responding changes systematically within sessions during conditioning procedures.
AU  - F K McSweeney
AU  - J M Roll
PY  - 1993
DO  - 10.1901/jeab.1993.60-621
UR  - https://pubmed.ncbi.nlm.nih.gov/8283153/
ID  - 8283153
ER  -