@misc{indiciae69ff7977322f,
  title = {Deflectometer for precracked charpy and jic bend tests},
  author = {Bubsey, R. T. and Jones, M. H.},
  year = {1980},
  url = {https://ntrs.nasa.gov/citations/19790000386},
  note = {Source identifier: 19790000386}
}