NORKUS, Zenonas. When Ancient Lithuanian State Became an Empire and Ceased to Be It? An Answer to Lithuanian Question Using an Estonian Method. Lietuvos istorijos studijos, [S. l.], v. 23, p. 35–68, 2009. DOI: 10.15388/LIS.2009.36957. Disponível em: https://www.journals.vu.lt/lietuvos-istorijos-studijos/article/view/36957.. Acesso em: 20 oct. 2024.