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Ibn-ʿEzra, Avraham Ben-Meʾir: El Libro del Mundo (Sefer ha- 'Olam) en sus versiones castellanas / Abraham Ibn Ezra ; edición y estudio de Amparo Alba, Carlos Sainz de la Maza. - Madrid: Consejo Superior de Investigaciones Científicas, 2021. - 197 Seiten : Illustrationen, ISBN 978-84-00-10900-4 (Estudios hispano-judíos medievales ; 3)