VYDRA, Z. Tsarevich on the journey through Europe: Alexander Nicolaevich and his correpondence with the Tsar Nicholas I, 1838–1839. Theatrum historiae, [S. l.], n. 12, p. 69–91, 2013. Disponível em: https://theatrum.upce.cz/index.php/theatrum/article/view/1940. Acesso em: 2 may. 2024.