GEORGIEVA TRIFONOVA, T.; ZDRAVKOV, K. Digital library of scientific forums organized by the Faculty of Mathematics and Informatics of the University "St. Cyril and St. Methodius "- Veliko Tarnovo. Digital Presentation and Preservation of Cultural and Scientific Heritage, [S. l.], v. 6, p. 267–274, 2016. DOI: 10.55630/dipp.2016.6.29. Disponível em: https://dipp.math.bas.bg/dipp/article/view/dipp.2016.6.29. Acesso em: 5 may. 2024.