Martínez-Usarralde, M.-J., C. Lloret-Catalá, and S. Mas-Gil. “University Social Responsibility (USR): Principles for a Sustainable, Cooperative and Democratic University from the Participative Diagnosis of Its Student Body”. Education Policy Analysis Archives, vol. 25, July 2017, p. 75, doi:10.14507/epaa.25.2769.