ČELKIS, Tomas. From Territorical Swath to Line - Border: the Alteration of Border Conception in the Grand Duchy of Lithuania in 14th-16th Centuries. Lietuvos istorijos studijos, [S. l.], v. 22, p. 58–73, 2008. DOI: 10.15388/LIS.2008.36974. Disponível em: https://journals.vu.lt./lietuvos-istorijos-studijos/article/view/36974. Acesso em: 28 apr. 2025.