GÓRSKA, A.; KRAWIEC, M. The Stability of Component Assets in Optimal Portfolios of Stock and Commodity Indexes. Zeszyty Naukowe SGGW w Warszawie - Problemy Rolnictwa Światowego, [S. l.], v. 16, n. 4, p. 33–43, 2016. DOI: 10.22630/PRS.2016.16.4.96. Disponível em: https://prs.sggw.edu.pl/article/view/3473. Acesso em: 5 maj. 2024.