Greppin, John A.C. and Igor Diakonoff Some Effects of the Hurro-Urartian People and Their Languages upon the Earliest Armenians, Oct–Dec 1991, pp. 727.[1]
Origin Homelands of North Caucasian and Abkhaz-Adyghean Languages Comparative Notes on Hurro-Urartian, Northern Caucasian and Indo-European (页面存档备份,存于互联网档案馆)