List of Articles مدل میانگین-واریانس Open Access Article Abstract Page Full-Text 1 - Portfolio Optimization Problem with Markowitz's Mean-Variance Framework under Practical Constraints Using an Improved Genetic Algorithm Mostafa Shabani Hossein Ghanbari Emran Mohammadi Open Access Article Abstract Page Full-Text 2 - Portfolio Optimization Problem with Markowitz's Mean-Variance Framework under Practical Constraints Using an Improved Genetic Algorithm Mostafa Shabani Hossein Ghanbari Emran Mohammadi