@conference{186656,
  author = {Steven Ray},
  title = {A Modular Process Planning System Architecture},
  year = {1989},
  month = {1989-01-01},
  publisher = {Proceedings of the 1989 IIE Integrated Systems Conference},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=821439},
  language = {en},
}