@misc{indiciaec352fd8aa795,
  title = {FORTRAN programs to calculate differential stress concentration factors around two-dimensional circular and elliptical inclusions in an edge-loaded plate},
  author = {David L. Campbell},
  year = {1977},
  doi = {10.3133/ofr77459},
  url = {https://pubs.usgs.gov/publication/ofr77459},
  note = {Source identifier: ofr77459}
}