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State and Evolution of Public and Private Research and Development in Bulgarian Agriculture. International Journal of Sustainable Development & World Policy, [S. l.], v. 9, n. 1, p. 10–25, 2020. DOI: 10.18488/journal.26.2020.91.10.25. Disponível em: https://archive.conscientiabeam.com/index.php/26/article/view/2068. Acesso em: 22 jul. 2026.