@article{pgcausalityidentifyingspatiotemporal,
  title = {pg-Causality: Identifying Spatiotemporal Causal Pathways for Air Pollutants with Urban Big Data},
  author = {Julie Yixuan Zhu and Chao Zhang and Huichu Zhang and Shi Zhi and Victor O. K. Li and Jiawei Han and Yu Zheng},
  year = {2016},
  eprint = {1610.07045},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1610.07045v3},
}