Serban, I., Sordoni, A., Lowe, R., Charlin, L., Pineau, J., Courville, A. and Bengio, Y. (2017) “A Hierarchical Latent Variable Encoder-Decoder Model for Generating Dialogues”, Proceedings of the AAAI Conference on Artificial Intelligence, 31(1). doi: 10.1609/aaai.v31i1.10983.