OSTROWSKI, Norbert. The Etymologies of Perkūnas and aitivaras. Vilnius University Open Series, [S. l.], n. 1, p. 39–43, 2018. DOI: 10.15388/Proceedings.2018.3. Disponível em: https://journals.vu.lt./open-series/article/view/12986.. Acesso em: 21 nov. 2024.