Cheng, T. (1999). A process-oriented data model for fuzzy spatial object. International Institute for Aerospace Survey and Earth Sciences (ITC).
Citace podle Chicago (17th ed.)Cheng, Tao. A Process-oriented Data Model for Fuzzy Spatial Object. Enschede, The Netherlands: International Institute for Aerospace Survey and Earth Sciences (ITC), 1999.
Citace podle MLA (8th ed.)Cheng, Tao. A Process-oriented Data Model for Fuzzy Spatial Object. International Institute for Aerospace Survey and Earth Sciences (ITC), 1999.
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