@article{shen2021holistic,
	title={Holistic Network Virtualization and Pervasive Network Intelligence for {6G}},
	author={Shen, Xuemin and Gao, Jie and Wu, Wen and Li, Mushu and Zhou, Conghao and Zhuang, Weihua},
	journal={IEEE Commun. Surveys Tuts.},
	volume={24},
	number={1},
	pages={1--30},
	year={1st. Quart. 2022}
}