TY  - RPRT
TI  - Massed versus spaced sessions in systematic desensitization.
AU  - J O Kling
AU  - E M Minogue
PY  - 1973
DO  - 10.1080/00223980.1973.9915661
UR  - https://pubmed.ncbi.nlm.nih.gov/4748967/
ID  - 4748967
ER  -