Abedian, A. , Ghiasi, M. , Dehghan-Manshadi, B.. "Effect of a Linear-Exponential Penalty Functionon the GA-s Efficiency in Optimization of a Laminated Composite Panel". World Academy of Science, Engineering and Technology, Open Science Index 16, International Journal of Aerospace and Mechanical Engineering (2008), 2(4), 557 - 568.