@book{TUW-140184, editor = {Bauknecht, Kurt and Pr{\"o}ll, Birgit and Werthner, Hannes}, title = {Proceedings of the International Conference on e-commerce and Web Technologies (EC-Web), Krakow 2006}, publisher = {Springer, LNCS}, year = {2006}, address = {Heidelberg}, issn = {0302-9743} }