Schoenfeld, Devorah. “Anna Sapir Abulafia. Christian-Jewish Relations 1000-1300: Jews in the Service of Medieval Christendom”. Studies in Christian-Jewish Relations 9, no. 1 (March 3, 2014). Accessed April 30, 2024. https://ejournals.bc.edu/index.php/scjr/article/view/5400.