1. Hierarchy Theory: A Vision, Vocabulary and Epistemology;Ahl,1996
2. Toward a Unified Ecology;Allen,1992
3. Hierarchy: Perspectives for Ecological Complexity;Allen,1982
4. Determination of optimum sampling interval in grid digital elevation models (DEM) data acquisition;Balce;Photogrammetric Engineering and Remote Sensing,1987
5. Bani Neameh, J., 2003. Land evaluation for land use planning with especial attention to sustainable fodder production in the Rouzeh Chai catchment of Orumiyeh area, Iran. MSc. Thesis, International Institute for Geo-information Science and Earth Observation (ITC), Enschede, The Netherlands.