García-SanPedro, M.J. y Gairín Sallán, J. 2011. Competencies: The current reality and perspectives in the Spanish context. A case study research. Perspectiva Educacional. 50, 2 (jun. 2011), 55–76. DOI:https://doi.org/10.4151/07189729-Vol.50-Iss.2-Art.40.