@misc{indiciae25e71e2d91fe,
  title = {A VAX and MS-DOS computer program package for depth conversion of digitized, line-drawing interpretations of seismic sections, Part C. Source code files},
  author = {John J. Miller},
  year = {1991},
  doi = {10.3133/ofr91303c},
  url = {https://pubs.usgs.gov/publication/ofr91303C},
  note = {Source identifier: ofr91303C}
}