Hasse, Fee-Alexandra. “‘Human’: Linguistic Studies in the Emergence and Oral Communication of a Concept. Reconstructed Roots of the Prehistoric Language Contact Situation and Continuity as Reflexes in Historical Languages Across Language Families”. Dialectologia: revista electrònica, 2022, no. 29, pp. 79-104, https://raco.cat/index.php/Dialectologia/article/view/413025.