@article{towardsimperceptibleandrobustadversarial,
  title = {Towards Imperceptible and Robust Adversarial Example Attacks against Neural Networks},
  author = {Bo Luo and Yannan Liu and Lingxiao Wei and Qiang Xu},
  year = {2018},
  eprint = {1801.04693},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1801.04693v1},
}