1. Department of Psychology, Università Cattolica del Sacro Cuore, 20131 Milan, Italy
2. CERISVICO (Research Center on Community Development and Organisational Quality of Life), Università Cattolica del Sacro Cuore, 25121 Brescia, Italy
3. Institute of Social Sciences, University of Lisbon, 1600-189 Lisbon, Portugal
4. Department of Pedagogy, University of Girona, 17004 Girona, Spain