@article{803311,
  author = {Frederick Proctor and Thomas Kramer},
  title = {A Feature-Based Machining System Using STEP},
  year = {1998},
  month = {1998-11-30 00:11:00},
  publisher = {SPIE series},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=823356},
  language = {en},
}