@ARTICLE{9108997,
  author={Liu, Ye and Ma, Xiaoyuan and Shu, Lei and Yang, Qing and Zhang, Yu and Huo, Zhiqiang and Zhou, Zhangbing},
  journal={IEEE Network}, 
  title={Internet of Things for Noise Mapping in Smart Cities: State of the Art and Future Directions}, 
  year={2020},
  volume={34},
  number={4},
  pages={112-118},
  doi={10.1109/MNET.011.1900634}}