GRINČALAITIS, V. The letters of Eustachijus Valavičius and Leonas Sapiega to and from Justus Lipsius. Deeds and Days / Darbai ir Dienos, [S. l.], n. 70, p. 235–250, 2019. DOI: 10.7220/2335-8769.70.11. Disponível em: https://ejournals.vdu.lt/index.php/DiD/article/view/269. Acesso em: 20 apr. 2025.