KOSTENAROV, K. Calculation of the Operational Risk of a Non–Financial Company Using the Concept of VaR. Economy and Business Yearbook, [S. l.], v. 7, p. 63–71, 2022. DOI: 10.33919/EcoBY.22.7.4. Disponível em: https://ojs.nbu.bg/index.php/EcoBY/article/view/1320. Acesso em: 9 dec. 2025.