Inspirational Guide for the Implementation of PRME: Placing Sustainability at the Heart of Management Education, by M. Escudero, L. Albareda, J. M. Alcaraz, G. Weybrecht, and M. Csuri; Inspirational Guide for the Implementation of PRME (2nd ed.): Learning to Go Beyond, by M. Csuri, O. Laasch, F. B. Nahser and G. Weybrecht