TY  - RPRT
TI  - Asymmetrical stimulus control and the mirror-image problem.
AU  - J C Clarke
AU  - G J Whitehurst
PY  - 1974
DO  - 10.1016/0022-0965(74)90012-5
UR  - https://pubmed.ncbi.nlm.nih.gov/4816644/
ID  - 4816644
ER  -