See Lifshitz, “Papyrus grecs du desert de Juda,” Aegyptus 42 (1962), pp. 240–256 (+ 2 pls.); Yigael Yadin, “New Discoveries in the Judaean Desert,” Biblical Archaeologist 24 (1961), pp. 34–50; “More on the Letters of Bar Kochba,” ibid., pp. 86–95. See also Naphtali Lewis, The Documents from the Bar Kokhba Period in the Cave of Letters: Greek Papyri, Judean Desert Studies (Jerusalem: Israel Exploration Society, 1989).