??????  ????????, ????????, ???, Baumgarten, Elisheva , and Kushelevsky, Rella . 2006. ?From 'The Mother And Her Sons' To 'The Mother Of The Sons' In Medieval Ashkenaz / ?? '??? ??????' ?'?? ?????' ?????? ???? ????????. Zion / ????, ??, Pp. 273 - 300. http://www.jstor.org/stable/23567756.