@misc{indiciae8b9939230177,
  title = {Error variance and sensitivity associated with three different Periotron instruments.},
  author = {P van der Bijl and W P Dreyer and T J Kotze},
  year = {1986},
  doi = {10.1111/j.1600-0765.1986.tb01479.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/2942673/},
  note = {Source identifier: 2942673}
}