RAILA, Eligijus. On the Insignia of the Grand Duke. Lietuvos istorijos studijos, [S. l.], v. 16, p. 109–110, 2005. DOI: 10.15388/LIS.2005.37117. Disponível em: https://www.journals.vu.lt/lietuvos-istorijos-studijos/article/view/37117.. Acesso em: 20 oct. 2024.