@misc{1174486,
  author = {Michael T Postek},
  title = {Low accelerating voltage pitch standard based on the modification of NBS SRM 484:},
  year = {1987},
  month = {1987-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.87-3665},
  language = {en},
}