1. Anderson, J.R., Hardy, E.E., Roach, J.T., Witmer, R.E., 1976. A land use and land cover classification system for use with remote sensor data. US Geological Survey, Professional Paper 964, Washington, DC, 28 pp.
2. Volume quantification of coniferous forest compartments using spectral radiance recorded by Landsat Thematic Mapper;Ardö;Int. J. Remote Sens.,1992
3. Baatz, M., Schäpe, A., 2000. Multiresolution segmentation—an optimization approach for high quality multi-scale image segmentation. In: Strobl, J., Blaschke, T., Griesebener, G. (Eds.), Angewandte Geographische Informationsverarbeitung XII. Beiträge zum AGIT-Symposium Salzburg 2000, Herbert Wichmann Verlag, Kahrlsruhe, pp. 12–23.
4. Assessing structures in mountain forests as a basis for investigating the forests’ dynamics and protective function;Bebi;For. Ecol. Manage.,2001
5. BEV, 2001. Bundesamt für Eich- und Vermessungswesen, Produktinformation zum Geländehöhenmodell. http://www.bev.gv.at/prodinfo/dgm/dgm_3f.htm, as seen on 1 December 2001.