@article{crossdatabasenonfrontalfacialexpression,
  title = {Cross-database non-frontal facial expression recognition based on transductive deep transfer learning},
  author = {Keyu Yan and Wenming Zheng and Tong Zhang and Yuan Zong and Zhen Cui},
  year = {2018},
  eprint = {1811.12774},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1811.12774v1},
}