PRODANOVA, M. Workshop: Veliko Tarnovo - European Capital of Culture 2019. Digital Presentation and Preservation of Cultural and Scientific Heritage, [S. l.], v. 3, p. 247–250, 2013. DOI: 10.55630/dipp.2013.3.30. Disponível em: https://dipp.math.bas.bg/dipp/article/view/dipp.2013.3.30. Acesso em: 28 apr. 2024.