@misc{indiciae8632a8b5e1ce,
  title = {A simple integrating attachment for Servo recorders.},
  author = {G I Johnston and R L Morris and R B Conn and G W Kemnitz},
  year = {1968},
  url = {https://pubmed.ncbi.nlm.nih.gov/5644227/},
  note = {Source identifier: 5644227}
}