Forni, Gianfranco. «Might Hurro-Urartian and North-Caucasian Languages Be Derived from (or Related To) Indo-European?». Atti del Sodalizio Glottologico Milanese 2012, no. 7 n.s. (marzo 25, 2014). Consultato maggio 23, 2025. https://riviste.unimi.it/index.php/asgm/article/view/3439.