<hi xmlns="http://www.tei-c.org/ns/1.0" rend="bold">Heiko Müller / Johann-Christoph Freytag</hi>: <hi xmlns="http://www.tei-c.org/ns/1.0" rend="italic">Problems, Methods, and Challenges in Comprehensive Data Cleansing</hi>. Berlin 2003. PDF. <ref xmlns="http://www.tei-c.org/ns/1.0" target="http://www.dbis.informatik.hu-berlin.de/fileadmin/research/papers/techreports/2003-hub_ib_164-mueller.pdf"> [online]</ref> 496492772.