Li, Y., Z. Zhu, D. Kong, M. Xu, and Y. Zhao. “Learning Heterogeneous Spatial-Temporal Representation for Bike-Sharing Demand Prediction”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 33, no. 01, July 2019, pp. 1004-11, doi:10.1609/aaai.v33i01.33011004.