See Karl Georg Kuhn, “The Lord’s Supper and the Communal Meal at Qumran,” in The Scrolls and the New Testament, Krister Stendahl, ed. (New York: Harper & Row, 1957), pp. 65–93. Kuhn builds here on work of B. Lohse, published in German (and cited in his article). See also Jeremias, Eucharistic Words, pp. 216–218.