Building the E-service society : E-commerce, E-business, and E-government : IFIP 18th World Computer Congress TC6/TC8/TC11 4th International Conference on E-Commerce, E-Business, E-Government (13E 2004) 22-27 August 2004 Toulouse, France / edited by Winfried Lamersdorf, Volker Tschammer, Stéphane Amarger. - Lamersdorf, Winfried; Tschammer, Volker; Amarger, Stéphane (IFIP ;, 2004)