@misc{indiciaebf538551dd92,
  title = {Tractor stability indicator.},
  author = {D J Murphy and D C Beppler and H J Sommer},
  year = {1985},
  doi = {10.1016/0003-6870(85)90007-9},
  url = {https://pubmed.ncbi.nlm.nih.gov/15676551/},
  note = {Source identifier: 15676551}
}