John A. C. Greppin, Some Effects of the Hurro-Urartian People and Their Languages upon the Earliest Armenians, in Journal of the American Oriental Society, vol. 3, n. 4, 1991, pp. 720-730, DOI:10.2307/603403.
«Even for now, however, it seems difficult to deny that the Armenians had contact, at an early date, with a Hurro-Urartian people.»