@misc{1183556,
  author = {J D Siegwarth},
  title = {Radio frequency liquid level gauging in propane tank car safety tests - a feasibility study:},
  year = {1979},
  month = {1979-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.79-1600},
  language = {en},
}