TY  - RPRT
TI  - A variable-speed motorized bicycle ergometer for positive and negative work exercise.
AU  - B Bigland-Ritchie
AU  - H Graichen
AU  - J J Woods
PY  - 1973
DO  - 10.1152/jappl.1973.35.5.739
UR  - https://pubmed.ncbi.nlm.nih.gov/4770358/
ID  - 4770358
ER  -