Veteikis, Tomas. “The Issue on Indo-European Diglossy: Some Aspects of Lexis and Semantics of Fire and Water in the Early Indian and Greek Poetical Texts”. Acta Orientalia Vilnensia 3 (December 1, 2002): 66–80. Accessed December 8, 2021. https://www.journals.vu.lt/acta-orientalia-vilnensia/article/view/18295.