Aliu F, Nuhiu A, Krasniqi B, Aliu F. Modeling the Optimal Portfolio: the Case of the Largest European Stock Exchanges. CER [Internet]. 2020 Jun. 30 [cited 2025 Dec. 6];23(2):41-5. Available from: https://czasopisma.uni.lodz.pl/CER/article/view/7967