By Vries Sjoerd de   Kommers Piet   in International Journal of Web Based Communities

ISSN:1477-8394|1|1|115-123

Inderscience Publishers‎(2004)‎

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By Vries Sjoerd de   Diana Italo De   in Corporate Communications: An International Journal

ISSN:1356-3289|10|2|117-128

Emerald Group Publishing Ltd‎(2005)‎

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By Vries Sjoerd De   Diana Italo De   in International Journal of Continuing Engineering Education and Life-Long Learnin

ISSN:1560-4624|16|3-4|271-279

Inderscience Publishers‎(2006)‎

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