@misc{1188186,
  author = {L O Olsen and F W Ruegg},
  title = {An In-line density and viscosity sensor:},
  year = {1974},
  month = {1974-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.74-620},
  language = {en},
}