@misc{indiciae53dadb74dbbb,
  title = {The force-frequency relationship: a comparative study between warm- and cold-blooded animals.},
  author = {E Rumberger and H Reichel},
  year = {1972},
  url = {https://pubmed.ncbi.nlm.nih.gov/5063692/},
  note = {Source identifier: 5063692}
}