See Raphael Levy, “First ‘Dead Sea Scroll’ Found in Egypt Fifty Years Before Qumran Discoveries,” BAR 08:05; Yigael Yadin, The Ben Sira Scroll from Masada (Jerusalem: Israel Exploration Society, 1965); Israel Lévi, The Hebrew Text of the Book of Ecclesiasticus (Leiden: Brill, 1904). See also Alexander A. di Lella, The Hebrew Text of Sirach (The Hague, 1966).