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Prof. dr. Menno-Jan Kraak
Department of Geoinformation Processing
Faculty of Geoinformation Science and Earth Observation
University of Twente
PO Box 217, 7500 AE Enschede - the Netherlands
Hengelosestraat 99, 7514 AE Enschede - the Netherlands (visiting)
+31534874463 / +31534874335 (fax)