@misc{1183251,
  author = {Robert W Penn and Gregory B McKenna},
  title = {Physical testing of polymers for use in circulatory assist devices ::first annual report July 1978},
  year = {1978},
  month = {1978-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.IR.79-1741},
  language = {en},
}