BRAZAITIENĖ, Tatjana; BRAZAITIS, Zenonas. Volumetric modelling of economic index structures. Information & Media, [S. l.], v. 41, p. 70–75, 2007. DOI: 10.15388/Im.2007.0.3455. Disponível em: https://www.journals.vu.lt/IM/article/view/3455.. Acesso em: 27 apr. 2024.