Liang, Y., Meng, F., Zhang, Y., Chen, Y., Xu, J. and Zhou, J. (2021) “Infusing Multi-Source Knowledge with Heterogeneous Graph Neural Network for Emotional Conversation Generation”, Proceedings of the AAAI Conference on Artificial Intelligence, 35(15), pp. 13343-13352. doi: 10.1609/aaai.v35i15.17575.