@misc{indiciaef6b5f75cd391,
  title = {KBGIS-2: A knowledge-based geographic information system},
  author = {Smith, T. and Peuquet, D. and Menon, S. and Agarwal, P.},
  year = {1986},
  url = {https://ntrs.nasa.gov/citations/19860023393},
  note = {Source identifier: 19860023393}
}