@article{astructuredvariationalautoencoderfor,
  title = {A Structured Variational Auto-encoder for Learning Deep Hierarchies of Sparse Features},
  author = {Tim Salimans},
  year = {2016},
  eprint = {1602.08734},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1602.08734v1},
}