TY  - RPRT
TI  - Comparing excitatory backward and forward conditioning.
AU  - Raymond C Chang
AU  - Steven Stout
AU  - Ralph R Miller
PY  - 2004
DO  - 10.1080/02724990344000015
UR  - https://pubmed.ncbi.nlm.nih.gov/14690847/
ID  - 14690847
ER  -