TY  - RPRT
TI  - Partial avoidance contingencies.
AU  - G G Neffinger
AU  - J Gibbon
PY  - 1975
DO  - 10.1901/jeab.1975.23-437
UR  - https://pubmed.ncbi.nlm.nih.gov/16811855/
ID  - 16811855
ER  -