Open Source GIS A GRASS GIS Approach - Neteler, Markus; Mitasova, Helena; SpringerLink (Online service) (Boston, MA : Springer Science+Business Media, LLC, 2008)
Keywords: Geographic information systems; GRASS (Electronic computer system); Geography; Computer Applications in Geosciences; Environmental Monitoring/Analysis.; Geographical Information Systems/Cartography.; Image Processing and Computer Vision; Information Systems Applications (incl.Internet); Remote Sensing/Photogrammetry.