Collaborations Laura María Fernández-Méndez, Professor, Universidad Nacional de Educación a Distancia (Uned) (Madrid, Spain) Valérie Gyselinck, Professor, Gustave Eiffel University (Paris, France) María José Contreras Alcalde, Professor, Universidad Nacional de Educación a Distancia (Uned) (Madrid, Spain) Petra Jansen, Professor, University of Regensburg (Regensburg, Germany)
