@article{ispgdadversarialtrainingnecessary,
  title = {Is PGD-Adversarial Training Necessary? Alternative Training via a Soft-Quantization Network with Noisy-Natural Samples Only},
  author = {Tianhang Zheng and Changyou Chen and Kui Ren},
  year = {2018},
  eprint = {1810.05665},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1810.05665v2},
}