TY  - RPRT
TI  - EXTENDED TRAINING EXTINCTION EFFECT UNDER MASSED AND SPACED EXTINCTION TRAILS.
AU  - D BIRCH
PY  - 1965
DO  - 10.1037/h0022336
UR  - https://pubmed.ncbi.nlm.nih.gov/14343261/
ID  - 14343261
ER  -