Holger Bekel Ingo Bax Gunther Heidemann Helge Ritter Adaptive Computer Vision: Online Learning for Object Recognition. 447-454 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3175&spage=447 2004 conf/dagm/2004 DAGM-Symposium db/conf/dagm/dagm2004.html#BekelBHR04