D. Sramek Petr Berka Jirka Kosek Vojtech Svátek Improving WWW Access-from Single-Purpose Systems to Agent Architectures? 167-178 http://link.springer.de/link/service/series/0558/bibs/1904/19040167.htm 2000 conf/aimsa/2000 AIMSA db/conf/aimsa/aimsa2000.html#SramekBKS00