@misc{indiciae204053bfa7a0,
  title = {A study on optimum load for physical work.},
  author = {T Li and Z Liu and H Huang and S Jin and S Lu},
  year = {1992},
  url = {https://pubmed.ncbi.nlm.nih.gov/1491169/},
  note = {Source identifier: 1491169}
}