@article{ author = {Jahanian, Fahime, Mohammadi, Ahmad, paytakhti oskooe, seyyed ali, Mottaghi, Aliasghar}, title = {Portfolio optimization using gray wolf algorithm and modified Markowitz model based on CO-GARCH modeling}, journal = {Advances in Mathematical Finance and Applications}, year = {2023}, volume = {9}, number = {1}, pages = {305-319}, doi = {10.22034/amfa.2022.1966381.1787} }