Developing a project portfolio selection model for contractor firms considering the risk factor. Journal of Civil Engineering and Management, [S. l.], v. 18, n. 6, p. 879–889, 2012. DOI: 10.3846/13923730.2012.734856. Disponível em: https://journals.vilniustech.lt/index.php/JCEM/article/view/4549. Acesso em: 10 may. 2025.