Co-created Effective, Agile, and Trusted eServices 15th International Conference on Electronic Commerce, ICEC 2013, Turku, Finland, August 13-15, 2013. Proceedings - Järveläinen, Jonna; Li, Hongxiu; Tuikka, Anne-Marie; Kuusela, Tiina (Springer Berlin Heidelberg : Imprint: Springer, 2013)