@misc{185551,
  author = {Bradford Smith},
  title = {External Representation of Product Definition Data},
  year = {1989},
  month = {1989-01-01},
  publisher = {NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.IR.89-4166},
  language = {en},
}