@article{Wang2009Constrained,
  title={Constrained optimization based on hybrid evolutionary algorithm and adaptive constraint-handling technique},
  author={Wang, Yong and Cai, Zixing and Zhou, Yuren and Fan, Zhun},
  journal={Structural & Multidisciplinary Optimization},
  volume={37},
  number={4},
  pages={395-413},
  year={2009},
}