@misc{1191336,
  author = {Gustav Shapiro},
  title = {Circular of the Bureau of Standards no. 545::subminiaturization techniques for low-frequency receivers},
  year = {1954},
  month = {1954-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.CIRC.545},
  language = {en},
}