@article{unsupervisedimagesuperresolutionwithan,
  title = {Unsupervised Image Super-Resolution with an Indirect Supervised Path},
  author = {Zhen Han and Enyan Dai and Xu Jia and Xiaoying Ren and Shuaijun Chen and Chunjing Xu and Jianzhuang Liu and Qi Tian},
  year = {2019},
  eprint = {1910.02593},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/1910.02593v2},
}