M. Arends, D. Goldfarb, W. Merkl, M. Weingartner:
"Museums on the Web: Interaction with Visitors";
in: "Handbook of Research on Technologies and Cultural Heritage: Applications and Environments", issued by: University of Ioannina, Greece; IGI Global, Hershey, PA, 2011, ISBN: 978-1-60960-044-0, 142 - 165.