@misc{238101,
  author = {Robert Lipman},
  title = {STEP File Analyzer and Viewer User Guide (Update 5)},
  year = {2018},
  month = {2018-06-28},
  publisher = {Advanced Manufacturing Series (NIST AMS), National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.AMS.200-6},
  language = {en},
}