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André Freire is Full Professor at the ISCTE-IUL, University Institute of Lisbon, and CIES-IUL, Portugal. Mélany Barragán is Researcher at the University of Salamanca, Spain. Xavier Coller is Full Professor at Universidad Nacional de Educación a Distancia (UNED), Madrid, Spain. Marco Lisi is Assistant Professor at the Nova University Lisbon, FCSH-UNL, and IPRI-UNL, Portugal. Emmanouil Tsatsanis is Senior Researcher at CIES-IUL, and Invited Assistant Professor at the ISCTE-IUL, University Institute of Lisbon, Portugal. |