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ORCID"Flexible Abrechnungssysteme für digitale Produkte im E-Learning ..."
Markus Grüne (2008)
- Markus Grüne:
Flexible Abrechnungssysteme für digitale Produkte im E-Learning (Modelbased accounting and charging systems for digital products in the e-learning). Frankfurt University, Germany, 2008
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