Hittite Studies, edited by George A. Barton. No. 1. Part 1: A Hittite Manual for Beginners. Part 2: The Treaty of Mursilis with Kupanta-KAL Transliterated and Translated with Vocabulary. Pp. xxxix + 85. By George A. Barton. Paris: Guethner, 1928. - Volume 6 Issue 2
E. H. Sturtevant (Sun,) studied this question.
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