@misc{indiciaead8338d4428c,
  title = {Pulley feeding system.},
  author = {N W Gmitter and L H Richards},
  year = {1973},
  doi = {10.1093/ptj/53.9.973},
  url = {https://pubmed.ncbi.nlm.nih.gov/4724459/},
  note = {Source identifier: 4724459}
}