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Publicado en línea: 21 jun 2014
Páginas: 24 - 33
DOI: https://doi.org/10.5334/csci.61
© 2014 Ian Hargreaves, published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.
Ian Hargreaves
Professor of Digital Economy, Cardiff UniversityWales, united kingdom