@InProceedings{mehta-EtAl:2018:EMNLP,
  author    = {Mehta, Sachin  and  Koncel-Kedziorski, Rik  and  Rastegari, Mohammad  and  Hajishirzi, Hannaneh},
  title     = {Pyramidal Recurrent Unit for Language Modeling},
  booktitle = {Proceedings of the 2018 Conference on Empirical Methods in Natural Language Processing},
  month     = {October-November},
  year      = {2018},
  address   = {Brussels, Belgium},
  publisher = {Association for Computational Linguistics},
  pages     = {4620--4630},
  url       = {http://www.aclweb.org/anthology/D18-1491}
}