John M. Allegro, The Treasure of the Copper Scroll (Garden City: Doubleday, 1960); Al Wolters, “History and the Copper Scroll,” in Michael O. Wise et al., eds., Methods of Investigation of the Dead Sea Scrolls and the Khirbet Qumran Site: Present Realities and Future Prospects (Annals of the New York Academy of Sciences 722 [1994]), pp. 285–298; Wolters, “Copper Scroll,” in Lawrence H. Schiffman and James C. VanderKam, eds., Encyclopedia of the Dead Sea Scrolls, vol. 1 (New York: Oxford Univ. Press, 2000), pp. 144–148.