1. T. C. Hsia, Int. J. of Robotics and Automation 9, 176–174 (1994).
2. D. Corne, M. Dorigo, and F. Glover, New Ideas in Optimization (McGraw Hill, UK, England, 1999).
3. R. Storn and K. Price, Tech. Rep. TR-95-012[Online]. (1995).
4. J. Ronkkonen, S. Kukkonen, and K. V. Price, Proc. IEEE CEC 1, 506–513 (2005).