PURLYS, E. The Architecture of the Buildings of the Biržai Castle and Its Development: Acta Academiae Artium Vilnensis. Acta Academiae Artium Vilnensis, [S. l.], n. 97, p. 304–378, 2020. DOI: 10.37522/aaav.97.2020.42. Disponível em: https://aaav.vda.lt/journal/article/view/aaav97purlys. Acesso em: 13 oct. 2026.