- Training Recurrent Neural Networks, Ilya Sutskever, available at http://www.cs.utoronto.ca/~ilya/pubs/ilya_sutskever_phd_thesis.pdf
- Long Short-Term Memory, Hochreiter, Sepp, and Jurgen Schmidhuber, available at https://www.researchgate.net/publication/13853244_Long_Short-term_Memory
- Empirical Evaluation of Gated Recurrent Neural Networks on Sequence Modeling, Bengio et al, available at https://arxiv.org/abs/1412.3555