@misc{indiciae41eb9939c460,
  title = {Circularity-Measuring System},
  author = {WHIPPO. WALTER B. and Rohrkaste, G. R. and Miller, John E.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890000381},
  note = {Source identifier: 19890000381}
}