@misc{769111,
  author = {Chriss Grosvenor and Robert Billinger},
  title = {The 30/60 MHz Tuned Radiometer - The NIST System for Noise Temperature Measurements},
  year = {2002},
  month = {2002-05-01 00:05:00},
  publisher = {Technical Note (NIST TN), National Institute of Standards and Technology, Gaithersburg, MD},
  language = {en},
}