By Witfelt Claus   in Educational Media International

ISSN:1469-5790|37|4|235-241

Routledge Ltd‎(2000)‎

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By Andersen Kristine   Witfelt Claus   in International Journal of Continuing Engineering Education and Life-Long Learnin

ISSN:1560-4624|15|1-2|5-18

Inderscience Publishers‎(2005)‎

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