@misc{1180461,
  author = {Karl G Kessler},
  title = {Technical activities 1981 ::Center for Absolute Physical Quantities},
  year = {1981},
  month = {1981-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.81-2391},
  language = {en},
}