@article{semisupervisedgraphclassificationa,
  title = {Semi-Supervised Graph Classification: A Hierarchical Graph Perspective},
  author = {Jia Li and Yu Rong and Hong Cheng and Helen Meng and Wenbing Huang and Junzhou Huang},
  year = {2019},
  eprint = {1904.05003},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1904.05003v1},
}