@article{JMLR:v17:14-203,
  author  = {Gundram Leifert and Tobias Strauß and Tobias Grüning and Welf Wustlich and Roger Labahn},
  title   = {Cells in Multidimensional Recurrent Neural Networks},
  journal = {Journal of Machine Learning Research},
  year    = {2016},
  volume  = {17},
  number  = {97},
  pages   = {1--37},
  url     = {http://jmlr.org/papers/v17/14-203.html}
}