Lifshits, Yosef Yitsḥaḳ, <i>"uvi-Yeme Ha-Ḳadmonim": Ha-Hitpatḥut Ha-Halakhah Ha-Ashkenazit: Masoret, Ha-Ṭeḳsṭ Ha-Talmudi Ṿeha-Ḥayim Ba-ʻir Shel Yeme Ha-Benayim = In Time Immemorial : the Development of Ashkenazi Law.</i> Tel Aviv: Idra, 7832.