@article{roundtripadeepgenerativeneuraldensity,
  title = {Roundtrip: A Deep Generative Neural Density Estimator},
  author = {Qiao Liu and Jiaze Xu and Rui Jiang and Wing Hung Wong},
  year = {2020},
  eprint = {2004.09017},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2004.09017v4},
}