Mavo le-nusaḥ ha-Mishnah : nusaḥ ha-Mishnah ṿe-gilgulav le-mi-yeme ha-amoraʾim ha-rishonim ṿe-ʿad defuse R. Yo.Ṭ. Lipman Heler (Baʿal To.Y.Ṭ.) = Introduction to Mishnaic text - Epstein, Yaʿaḳov Naḥum (Magnes Press, 1948)