@misc{indiciae47a7ee9307b5,
  title = {Regulating intensity using perceived exertion during extended exercise periods.},
  author = {Jie Kang and Jay R Hoffman and Heather Walker and Edward C Chaloupka and Alan C Utter},
  year = {2003},
  doi = {10.1007/s00421-003-0811-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/12712344/},
  note = {Source identifier: 12712344}
}