DAVID GUTIERREZ RUBIO2026-01-292026-01-29202410.1177/147490412211430172-s2.0-85146596291https://www.scopus.com/inward/record.uri?eid=2-s2.https://ucocris.uco.es/handle/123456789/35957EducationEthnic stratification in the Spanish education systemresearch article