TY  - RPRT
TI  - Biofeedback heart rate training during exercise.
AU  - D S Goldstein
AU  - R S Ross
AU  - J V Brady
PY  - 1977
DO  - 10.1007/bf00998662
UR  - https://pubmed.ncbi.nlm.nih.gov/901849/
ID  - 901849
ER  -