@misc{indiciae2ac9ec9fcf6c,
  title = {On the sharpness of cracks compared with Wells' COD},
  author = {Roberts, E., Jr. and Srawley, J. E. and Swedlow, J. L.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700032784},
  note = {Source identifier: 19700032784}
}