TY  - RPRT
TI  - An invariant relation between changing over and reinforcement.
AU  - L R Dreyfus
AU  - L G Dorman
AU  - J G Fetterman
AU  - D A Stubbs
PY  - 1982
DO  - 10.1901/jeab.1982.38-327
UR  - https://pubmed.ncbi.nlm.nih.gov/16812304/
ID  - 16812304
ER  -