TY  - RPRT
TI  - BACKWARD LEARNING WHEN THE SAME ITEMS SERVE AS STIMULI AND RESPONSES.
AU  - R K YOUNG
AU  - P C JENNINGS
PY  - 1964
DO  - 10.1037/h0043104
UR  - https://pubmed.ncbi.nlm.nih.gov/14177683/
ID  - 14177683
ER  -