@article{13889,
  author       = {{Puttmer, A. and Hauptmann, P. and Henning, Bernd}},
  issn         = {{0885-3010}},
  journal      = {{IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control}},
  pages        = {{85--92}},
  title        = {{{Ultrasonic density sensor for liquids}}},
  doi          = {{10.1109/58.818751}},
  year         = {{2002}},
}