@article{liu2022atkse,
        title={Are Gradients on Graph Structure Reliable in Gray-box Attacks?},
        author={Zihan Liu and Yun Luo and Lirong Wu and Siyuan Li and Zicheng Liu and Stan Z. Li},
        journal={arXiv preprint arXiv:2208.05514},
        year={2022}
  }