@article{Cai2017A,
  title={A Decomposition-Based Many-Objective Evolutionary Algorithm With Two Types of Adjustments for Direction Vectors.},
  author={Cai, X. and Mei, Z. and Fan, Z.},
  journal={IEEE Transactions on Cybernetics},
  volume={PP},
  number={99},
  pages={1-14},
  year={2017},
}