Brändli, M., 1997. Modelle und Methoden für die Extraktion geomorphologischer und hydrologischer Objekte aus digitalen Geländemodellen. Unpublished . Geographisches Institut der Universität Zürich.
Burrough, P. A., McDonnell, R. A., 1998. Principles of Geographical Information Systems. New York: Oxford University Press.
Chilès, J., Delfiner, P., 1999. Geostatistics: Modeling Spatial Uncertainty. New York: John Wiley and Sons.
Corripio, J., 2003. Vectorial algebra algorithms for calculating terrain parameters from DEMs and solar radiation modeling in mountainous
terrain. International Journal of GIS, 17(1), 1-23.
De Floriani, L., Falcidieno, B., Pienovi, C., Allen, D., Nagy, G., 1986. A Visibility-Based Model for Terrain Features. In: Proceedings Second International Symposium on Spatial Data Handling. Seattle, 235-50.
De Floriani, L., Nagy, G., Puppo, E., 1992. Computing a Line-Of-Sight Network on a Terrain Model. In: Proceedings 5th International Symposium on Spatial Data Handling. Charleston, 672-681.
Dozier, J., Bruno, J., Downcy, P., 1981. A Faster Solution to the Horizon Problem. Computers & Geosciences, 7, 145-51.
Fisher, P.F., 1991. First Experiments in Viewshed Uncertainty: The Accuracy of the Viewshed Area. Photogrammetric Engineering and Remote Sensing, 57(10), 1321-1327.
Foley, J.D., van Dam, A., Feiner, S.K., Hughes, J.F., 1992. Computer Graphics: Principles and Practice. Reading: Addison-Wesley. [Second Edition, Revised Fifth Printing.]
Funk, M., Hölzle, M., 1992. A Model of Potential Direct Solar Radiation for Investigating Occurrences of Mountain Permafrost. Permafrost and Periglacial Processes, 3, 139-142.
Goodchild, M.F., 1980. Algorithm 9: Simulation of Autocorrelation for Aggregate Data. Environment and Planning, 12, 1073-1081.
Gruber, S., Hölzle, M, 2001. Statistical modeling of mountain permafrost distribution: Local calibration and incorporation of remotely sensed data. Permafrost and Periglacial Processes, 12(1), 69-77.
Kotz, S., Johnson, N. L., 1985. Encyclopedia of Statistical Sciences. New York: John Wiley and Sons.
Longley, Paul A., Goodchild, Michael F., Maguire, David J., Rhind, David W., 1999. Geographical Information Systems. Principles, techniques, applications and management. New York: John Wiley and Sons. [2 volumes. 580 pages. 2nd edition]
Moore, I. D., 1996. Hydrological Modeling and GIS. In: M. F. Goodchild, L. T. Steyaert, B. O. Parks, C. Johnston, D. Maidment, M. Crane, and S. Glendinning, ed. GIS and Environmental Modeling: Progress and Research Issues. Fort Collins, Colorado: GIS World Books.
Quinn, P., Beven, K., Chevalier, P., Planchon, O., 1991. The Prediction of Hillslope Flow Paths for Distributed Hydrological Modelling Using Digital Terrain Models. Hydrological Processes, 5(1), 59-79.
Sigle, M., Hellwich, O., Köstli, A., 1992. Intersection and Combination of Digital Elevation Models - Methods and Applications. International Archives of Photogrammetry and Remote Sensing, 29(B4), 878-882.
Sutherland, I.E., Sproull, R.F., Schumacker, R.A., 1974. A Characterization of Ten Hidden-Surface Algorithms. ACM Computing Surveys, 6(1), 1-55.
Swisstopo, 1991. Digital Terrain Model DTM/DHM25, 1:25000. Bern: Swisstopo. [Reporduced with authorisation by swisstopo (BA057224)] (Download)
Wilson, J. , Gallant, J., 2000. Terrain Analysis: Principles and Applications. New York: John Wiley and Sons.
Yoeli, P., 1985. The Making of Intervisibility Maps with Computer and Plotter. Cartographica, 22(3), 88-103.