@misc{indiciaea3d973dc0db8,
  title = {DLG2ISM, a Fortran program to read DLG-3 optional format digital data files into the VAX/VMS version of the interactive surface modeling software package},
  author = {G.N. Green},
  year = {1988},
  doi = {10.3133/ofr88258a},
  url = {https://pubs.usgs.gov/publication/ofr88258A},
  note = {Source identifier: ofr88258A}
}