López Gómez, Ernesto. “Analysis of Doctoral Theses on Tutoring: Bibliometric Approach and Thematic Trends”. Revista General de Información y Documentación 26, no. 1 (July 21, 2016): 147–164. Accessed July 10, 2026. https://revistas.ucm.es/index.php/RGID/article/view/53047.