Martin Scholz Ralf Klinkenberg Boosting classifiers for drifting concepts. 3-28 2007 11 Intell. Data Anal. 1 http://iospress.metapress.com/openurl.asp?genre=article&issn=1088-467X&volume=11&issue=1&spage=3 db/journals/ida/ida11.html#ScholzK07