@article{pen4recpreferenceevolutionnetworksfor,
  title = {PEN4Rec: Preference Evolution Networks for Session-based Recommendation},
  author = {Dou Hu and Lingwei Wei and Wei Zhou and Xiaoyong Huai and Zhiqi Fang and Songlin Hu},
  year = {2021},
  eprint = {2106.09306},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2106.09306v1},
}