Louis-Hugues Vincent, Jerusalem sous Terre—Les récentes fouilles d’Ophel (London, 1911), p. 29; R.A.S. Macalister and J. Garrow Duncan, Excavations on the Hill of Ophel, Jerusalem, 1923–1925, Annual of the Palestine Exploration Fund 4 (1926), plate 5, rockscarp A; Kenyon, Digging Up Jerusalem, p. 83; Shiloh, Excavations at the City of David, p. 12; and Steiner, “The Earliest City Wall of Jerusalem,” Israel Exploration Journal 38 (1988), pp. 203–204.