Resume
This work is cataloged in the Scientific Portal. Officially published in Telematics and Informatics (2016). Referenced as: "António Abreu; Álvaro Rocha; João Vidal de Carvalho; Manuel Pérez Cota".
The complete abstract and full text can be accessed directly at the official DOI: https://doi.org/10.1016/j.tele.2016.08.011