@misc{indiciae0e3cdbff6da7,
  title = {A monostrain test apparatus},
  author = {Helf, J. C. and Hill, W. L. and Pontius, H. L.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720000678},
  note = {Source identifier: 19720000678}
}