KORKHINA, I. A. Mathematical model of optimal project portfolio forming based on random factors. Science and Transport Progress , [S. l.], n. 2(50), p. 111–118, 2014. DOI: 10.15802/stp2014/23787. Disponível em: https://stp.ust.edu.ua/article/view/23787. Acesso em: 3 may. 2024.