@conference {1646,
	title = {This Place is Swarming: Using a Mobile Social App to Study Human Traffic in Cities},
	booktitle = {2018 {IEEE} International Conference on Pervasive Computing and Communications Workshops, PerCom Workshops 2018, Athens, Greece, March 19-23, 2018},
	year = {2018},
	doi = {10.1109/PERCOMW.2018.8480234},
	url = {https://doi.org/10.1109/PERCOMW.2018.8480234},
	author = {Hao Zhao and Qingyuan Gong and Yang Chen and Jingrong Chen and Yong Li and Xiaoming Fu}
}
