BUTOV, Ilya S. Evidence of unidentified «aeroplanes» in Viciebsk guberniya in 1914–1915: a look through the prism of the era. Journal of the Belarusian State University. History, [S. l.], n. 3, p. 23–33, 2020. DOI: 10.33581/2520-6338-2020-3-23-33. Disponível em: https://journals.bsu.by/index.php/history/article/view/2718. Acesso em: 18 jul. 2026.