@misc{indiciae3cb6235acd2f,
  title = {Test-Free Fracture Toughness},
  author = {Minnetyan, Levon and Chamis, Christos C.},
  year = {2003},
  url = {https://ntrs.nasa.gov/citations/20030007727},
  note = {Source identifier: 20030007727}
}