George E. Mendenhall, “Covenant Forms in Israelite Tradition,” The Biblical Archaeologist 17/3 (1954), pp. 58–60, 62–63. Although modifications in the details of Mendenhall’s conclusions have become necessary as a result of new appraisals of the evidence (see, for example, Mendenhall and Gary A. Herion, “Covenant,” The Anchor Bible Dictionary (New York: Doubleday, 1992), pp. 1183–1188), his overall thesis remains intact. The seminal study on this subject is Viktor Korosec, Hethitische Staatsvertrage (Leipzig: J. C. Hinrichs, 1931).