2009
Hofierka, J., H. Mitasova, and M. Neteler. "Geomorphometry in GRASS GIS." In Geomorphometry - Concepts, Software, Applications, edited by T. Hengl and H. I. Reuter, 387-410. Vol. 33. Developments in Soil Science 33. Elsevier, 2009. Abstract
2008
Geomorphometry: Concepts, Software, Applications, Edited by T. Hengl and H. I. Reuter. Vol. 33. Developments in Soil Science 33. Amsterdam: Elsevier, 2008.