@misc{indiciaeed1b8d429a25,
  title = {The use of eigenfunction expansions in the general solution of three-dimensional crack problems.},
  author = {Hartranft, R. J. and Sih, G. C.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690064652},
  note = {Source identifier: 19690064652}
}