BIKSE, V.; RIVZA, B. The Helix Model System as a Challenge and Driver for Rural and Regional Development. New Trends and Issues Proceedings on Humanities and Social Sciences, [S. l.], v. 2, n. 6, p. 24–34, 2017. DOI: 10.18844/prosoc.v2i6.1425. Disponível em: https://un-pub.eu/ojs/index.php/pntsbs/article/view/1425. Acesso em: 7 may. 2024.