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Vega, D., Meseguer, R., & Freitag, F. (2014). Analysis of the Social Effort in Multiplex Participatory Networks (J. Altmann, K. Vanmechelen, & O. F. Rana, Eds.). Springer International Publishing. https://doi.org/10.1007/978-3-319-14609-6_5

Altmann, J., Vanmechelen, K., & Rana, O. F. (Eds.). (2013). Economics of Grids, Clouds, Systems, and Services - 10th International Conference, GECON 2013, Zaragoza, Spain, September 18-20, 2013. Proceedings. Springer.

Jimenez, J., Baig, R., Escrich, P., Khan, A. M., Freitag, F., Navarro, L., … Altmann, J. (2013). Supporting cloud deployment in the Guifi.net community network. Presented at the. Trento, Italy: IEEE. https://doi.org/10.1109/GIIS.2013.6684361