@article{aproximalstochasticquasinewtonalgorithm,
  title = {A Proximal Stochastic Quasi-Newton Algorithm},
  author = {Luo Luo and Zihao Chen and Zhihua Zhang and Wu-Jun Li},
  year = {2016},
  eprint = {1602.00223},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1602.00223v2},
}