Castro, D. and Laham Cohen, R. 2023. The preface of de Comprobatione Sextae Aetatis in the context of the Christian-Jewish relations in the seventh century: analysis and translation. Estudios de Historia de España. 25, 2 (Dec. 2023), 166–183. DOI:https://doi.org/10.46553/EHE.25.2.2023.p166-183.