Lewis, Katzoff and Greenfield, “Papyrus Yadin 18, ” pp. 236–247. For a study of marriage contracts, see M.A. Friedman, Jewish Marriage in Palestine: A Cairo Geniza Study, 2 vols. (Tel Aviv and New York: Jewish Theological Seminary, 1979–1980). A briefer treatment can be found in Léonie J. Archer, Her Price Is Beyond Rubies: The Jewish Woman in Graeco-Roman Palestine, Journal for the Study of the Old Testament supp. ser. 60 (Sheffield: JSOT Press, 1990). As P. Yadin 18 and 37, the two Greek marriage contracts, have nothing explicitly Jewish about them, some have disputed their Jewishness, including A. Wasserstein (“A Marriage Contract from the Province of Arabia Nova: Notes on Papyrus Yadin 18, ” JQR 80 [1989], pp. 105–130) and others. Katzoff has responded in “Papyrus Yadin 18 Again: A Rejoinder,” Jewish Quarterly Review 82 (1991), pp. 171–176, and elsewhere.