By Wirtz Bernd   Lutje Sebastian   Schierz Paul Gerhardt   in International Journal of Public Administration

ISSN:0190-0692|33|1|26-42

Routledge Ltd‎(2010)‎

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By Wirtz Bernd W.   Nitzsche Philipp T.   Ullrich Sebastian   in International Journal of Electronic Business

ISSN:1470-6067|11|1|63-84

Inderscience Publishers‎(2014)‎

Access to resources Favorite 8.9621315