TY  - RPRT
TI  - Feedback and incentive effects on the decrease of interbeat interval.
AU  - D W Johnston
AU  - J Lethem
PY  - 1983
DO  - 10.1007/bf00998855
UR  - https://pubmed.ncbi.nlm.nih.gov/6639977/
ID  - 6639977
ER  -