RAKOSNIK, J.; STANCHEV, P.; SIMEONOV, G.; PAVLOV, R. Bulgarian Digital Mathematical Library BulDML and Czech Digital Mathematical Library DML-CZ as parts of the European Digital Mathematics Library EuDML. Digital Presentation and Preservation of Cultural and Scientific Heritage, [S. l.], v. 2, p. 60–68, 2012. DOI: 10.55630/dipp.2012.2.27. Disponível em: https://dipp.math.bas.bg/dipp/article/view/dipp.2012.2.27. Acesso em: 14 apr. 2024.