Shen, Xiaoyu, Hui Su, Shuzi Niu, and Vera Demberg. “Improving Variational Encoder-Decoders in Dialogue Generation”. Proceedings of the AAAI Conference on Artificial Intelligence 32, no. 1 (April 27, 2018). Accessed October 19, 2021. https://ojs.aaai.org/index.php/AAAI/article/view/11960.