@misc{indiciae41962e7becf2,
  title = {The semi-elliptical surface crack - A solution by the alternating method},
  author = {Smith, F. W. and Sorensen, D. R.},
  year = {1976},
  url = {https://ntrs.nasa.gov/citations/19760039289},
  note = {Source identifier: 19760039289}
}