TY - JOUR AU - Yakideh, K. AU - . Gholizadeh, M.H AU - Kazmi, M. TI - Portfolio Optimization Based on Cross Efficiencies By Linear Model of Conditional Value at Risk Minimization JO - Journal of New Researches in Mathematics VL - 2 IS - 2 SP - 33 EP - 47 PY - 2016 DO - ER -