RYČKOV, A.; VASILIAUSKAS, E. Description of the Border of the Grand Duchy of Lithuania and Livonia in 1529. Istorija / History, [S. l.], v. 127, n. 3, p. 104–131, 2023. DOI: 10.15823/istorija.2022.127.5. Disponível em: https://ejournals.vdu.lt/index.php/istorijoszurnalas/article/view/4686. Acesso em: 29 mar. 2024.