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Bachmann, Goetz and Wittel, Andreas. 2006. Medien-Ethnographie. In: Ruth Ayaß and Jörg Bergmann, eds. Qualitative Methoden der Medienforschung. Berlin: Rowohlt, p. 36. ISBN 9783499556654 [Book Section]

Lash, Scott; Lury, Celia and Wittel, Andreas. 2002. Real and Virtual Connectivity: New Media in London. In: S. Woolgar, ed. The Virtual Society? Oxford: OUP Oxford, pp. 189-208. ISBN 978-0199248766 [Book Section]