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http://scidok.sulb.uni-saarland.de/volltexte/2010/3219/ (beliebiger Volltext)
http://scidok.sulb.uni-saarland.de/doku/lic_ohne_pod.php?la=de (Verlagsvertrag)
Matijevic, D. (2007). Geometric Optimization and Querying - Exact and Approximate. PhD Thesis, Universität des Saarlandes, Saarbrücken.