@misc{indiciae925c60bea73e,
  title = {A 3-dimensional digitizer using spherical co-ordinates.},
  author = {D Thomas},
  year = {1988},
  doi = {10.1111/j.1834-7819.1988.tb00656.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/3165627/},
  note = {Source identifier: 3165627}
}