13. Joel Sirkes Responsum#52.
14. Leopold Zunz , Zur Geschichte und Literatur, Berlin 1845, pp. S513ff; Isidore Epstein , Studies in the Communal Life of the Jews of Spain, New York , 1968, p. 33.
15. Isidore Epstein , The Responsa of Rabbi Simon ben Zemah Duran, London , 1930, pp. 69f.
16. Israel M. Goldman , The Life and Times of David Ibn Abi Zimra , New York , 1970, p. 90.
17. Shlomo Eidelberg, Jewish Life in Austria , Philadelphia , 1962, pp. 61ff.
18. Joseph Colon , Responsa#169; Shulhan Arukh, Orah Hayim 696.8.
19. Myer S. Lew, The Jews of Poland , London , 1944, pp. 8Off.
20. Elijah Judah Schochet, Rabbi Joel Sirkes- His Life, Works and Times, New York , 1971, pp. 139ff.
21. Responsa#32; Mayer of Lublin Responsa#62; Joel Sirkes Responsa#43.
22. Solomon Luria , Responsa#93; Moses Isserles , Responsa#33; Joel Sirkes , Responsa#51.
23. Selma Stern , The Court Jew, Philadelphia , 1950, pp. 177ff.
24. Eric Zemer, Jewish Synods in Germany During the Latest Middle Ages, New York , 1978, p. 104.
