Alexander V. Smirnov Mikhail Pashkin Nikolai Chilov Tatiana Levashova Andrew Krizhanovsky Adaptive Services for Customised Knowledge Delivery. 437-440 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3137&spage=437 2004 conf/ah/2004 AH db/conf/ah/ah2004.html#SmirnovPCLK04