@article{189,
  author = {D.R Peddle and C.R Duguay},
  title = {Mountain terrain analysis using a knowledge based interface to a GIS},
  year = {1998},
  journal = {Geomatica},
  volume = {52},
  chapter = {145},
  url = {http://cat.inist.fr/?aModele=afficheN\&cpsidt=2423119},
}