Olondriz Valverde, A., y I. del Arco Bravo. «Who Are the New Leaders? Systematic Review of the Figure of the Middle Leader in Educational Organizations». Perspectiva Educacional, vol. 65, n.º 2, julio de 2026, pp. 172-99, doi:10.4151/07189729-Vol.65-Iss.2-Art.1665.