Perushe sidur ha-tefilah la-Roḳeaḥ perush ha-tefilah ṿe-sodoteha le-khol yemot ha-shanah - Elʿazar ben Yehudah 1160-1230 (Mekhon ha-Rav Hershler le-meḥḳar u-le-hotsaʾah shel sifrut Toranit ṿe-Halakhit, 1992)