The Insights of Academician Evgeni Mateev about the Transition towards a New Type of Civilization. UNWE Yearbook, [S. l.], v. 1, p. 229–305, 2011. Disponível em: https://ojs.e-dnrs.org/ybunwe/article/view/1367. Acesso em: 6 dec. 2025.