1 Portfolio optimization problems in different risk measures using genetic algorithm
Tun-Jen Changa, Sang-Chin Yangb, ,  and Kuang-Jung Chang

Expert Systems with Applications
Volume 36, Issue 7, September 2009, Pages 10529-10537

http://www.sciencedirect.com/science/article/pii/S0957417409002188

2 A MEAN-VARIANCE-SKEWNESS MODEL: ALGORITHM AND APPLICATIONS

HIROSHI KONNO,REI YAMAMOTO

International Journal of Theoretical and Applied Finance

http://www.worldscinet.com/ijtaf/08/0804/S0219024905003116.html