HOFMAN, M. .; GRELA, G. . Project portfolio risk categorisation – factor analysis results. International Journal of Information Systems and Project Management, [S. l.], v. 6, n. 4, p. 39–58, 2022. DOI: 10.12821/ijispm060403. Disponível em: https://revistas.uminho.pt/index.php/ijispm/article/view/3808. Acesso em: 22 jul. 2024.