@article{yang2024multi,
  title={Multi-level Graph Knowledge Contrastive Learning},
  author={Yang, Haoran and Wang, Yuhao and Zhao, Xiangyu and Chen, Hongxu and Yin, Hongzhi and Li, Qing and Xu, Guandong},
  journal={IEEE Transactions on Knowledge and Data Engineering},
  year={2024},
  publisher={IEEE}
}