@misc{indiciae31daa678eac3,
  title = {Work and effort.},
  author = {H C Burger and L J Koopman and P Van Loon},
  year = {1967},
  doi = {10.1152/jappl.1967.22.5.913},
  url = {https://pubmed.ncbi.nlm.nih.gov/6025747/},
  note = {Source identifier: 6025747}
}