Sefer ha-yashar le-Rabenu Tam : ḥeleḳ ha-sheʾelot ṿe-ha-teshuvot - Tam, Jacob ben Meir (Verfasser); Margolioth, Ephraim Zalman; Rosenthal, Ferdinand (Herausgeber) (Sefarim ha-yotsʾim la-or ʿal yede Ḥevrat Meḳitse Nirdamim, 1889)