Electronic Participation Third IFIP WG 8.5 International Conference, ePart 2011, Delft, The Netherlands, August 29 – September 1, 2011. Proceedings - Tambouris, Efthimios.; Tambouris, Efthimios.; Macintosh, Ann.; Macintosh, Ann.; de Bruijn, Hans.; de Bruijn, Hans. (Springer Berlin Heidelberg : Imprint: Springer, 2011)