@article{bidirectionalhelmholtzmachines,
  title = {Bidirectional Helmholtz Machines},
  author = {Jorg Bornschein and Samira Shabanian and Asja Fischer and Yoshua Bengio},
  year = {2015},
  eprint = {1506.03877},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1506.03877v5},
}