BOARD, E. Introduction. Economy and Business Yearbook, [S. l.], v. 8, p. 9–9, 2023. DOI: 10.33919/EcoBY.23.8.1. Disponível em: https://ojs.nbu.bg/index.php/EcoBY/article/view/1349. Acesso em: 7 dec. 2025.