Marcus, I. G. (1997). "Sefer Hasidim" (The Book of the Pietists) is written by a group of rabbinic authors who come to be known as "hasidei ashkenaz", the Pietists of Germany. Yale Companion to Jewish Writing and Thought in German Culture, 1096-1996.

Marcus, Ivan G. ""Sefer Hasidim" (The Book of the Pietists) Is Written by a Group of Rabbinic Authors Who Come to Be Known as "Hasidei Ashkenaz", the Pietists of Germany." Yale Companion to Jewish Writing and Thought in German Culture, 1096-1996 1997.

Marcus, Ivan G. ""Sefer Hasidim" (The Book of the Pietists) Is Written by a Group of Rabbinic Authors Who Come to Be Known as "Hasidei Ashkenaz", the Pietists of Germany." Yale Companion to Jewish Writing and Thought in German Culture, 1096-1996, 1997.