Martha Montero-Sieburth is a Lecturer in Social Sciences and Humanities at Amsterdam University College, the Netherlands, and Professor Emerita of the Leadership in Urban Schools Doctoral/Educational Administration Masters Programs at the University of Massachusetts-Boston, USA.

Rosa Mas Giralt is the Deputy Programme Manager of the BA Professional Studies at the Lifelong Learning Centre and Visiting Research Associate at the School of Geography in the University of Leeds, UK.

Noemi Garcia-Arjona is Associate Professor at the Faculty of Sports and Physical Education, University of Rennes 2, and tenured member at Research Unit VIPS2 (Violences, Innovations, Politiques, Socialisations, Sports), Rennes, France.

Joaquín Eguren is Senior Researcher and Professor at the University Institute for Studies on Migrations, Universidad Pontificia Comillas in Madrid, Spain.