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Groenbaek, K.; Oerbaek, P.; Kristensen, J.F.; Eriksen, M.A.: Physical hypermedia : augmenting physical material with hypermedia structures (2003)
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Yang, C.C.; Liu, N.: Web site topic-hierarchy generation based on link structure (2009)
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E-Text : Strategien und Kompetenzen. Elektronische Kommunikation in Wissenschaft, Bildung und Beruf (2001)
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