@article{ForsterEtAl2018,
  title={Neural Simpletrons: Learning in the Limit of Few Labels with Directed Generative Networks},
  author={Forster, Dennis and Sheikh, Abdul-Saboor and L{\"u}cke, J{\"o}rg},
  journal={Neural computation},
  number={30},
  pages={2113--2174},
  year={2018},
  publisher={MIT Press}
}