@Article{song-tkde20,
  author = {Linfeng {Song} and Zhiguo {Wang} and Mo {Yu} and Yue {Zhang} and
  Radu {Florian} and Daniel {Gildea}},
  title = {Evidence Integration for Multi-hop Reading Comprehension with Graph
  Neural Networks},
  journal = {IEEE Transactions on Knowledge and Data Engineering},
  year = {2020},
  pages = {631--639},
  URL = {https://ieeexplore.ieee.org/abstract/document/9051845}
}