@misc{1152071,
  author = {Robert R Lipman and Soonjo Kwon},
  title = {STEP file analyzer and viewer user guide (Update 6):},
  year = {2020},
  month = {2020-06-01 04:06:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NIST.AMS.200-10},
  language = {en},
}