This study deals with the encyclopedia text Eshkol hak—kofer
written by the late twelfth century Karaite Judah Hadassi. This
book includes a thorough compilation of Karaite halakhah, together with its ratlonale, the polemic that accompanied the development of these laws, Karaitic and legal methodology, and also
their views of Rabbinite Oral Law.
Ehrlich, Baruch. Laws of Sabbath in Yehudah Hadassi's "Eshkol hak-Kofer". Submitted in partial fulfillment of requirements for the degree of Doctor of Philosophy, Ph.D. Bernard Revel Graduate School. Yeshiva University, 1974.
*This is contructed from limited avaiable data and may be imprecise.