MANUEL TORRALBO RODRÍGUEZ2026-01-292026-01-29201610.1177/15381927155929272-s2.0-84977072808https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/27199EducationGender Bias in Higher Education: Spanish Doctoral Dissertations in Mathematics Educationresearch article