Matthias R. Brust Daniel Görgen Christian Hutter Steffen Rothkugel ADS as Information Management Service in an M-Learning Environment. 734-742 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3213&spage=734 2004 conf/kes/2004-1 KES db/conf/kes/kes2004-1.html#BrustGHR04