por EGOV 2002 (2002 : Aix-en-Provence, Francia) | Lenk, Klaus, 1940- [editor] | Traunmüller, Roland [editor].
por International Workshop on Internet Charging and QoS Technologies (5 : 2006 : Saint-Malo, Francia) | Stiller, Burkhard, 1965- [editor] | Reichl, Peter [editor] | Tuffin, Bruno [editor].
por QofIS 2001 (2 : 2001 : Coimbra, Portugal) | Smirnov, Mikhail I [editor].