Xie, L., C. Xiang, Z. Yu, G. Xu, Z. Yang, D. Cai, and X. He. “PI-RCNN: An Efficient Multi-Sensor 3D Object Detector With Point-Based Attentive Cont-Conv Fusion Module”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 34, no. 07, Apr. 2020, pp. 12460-7, doi:10.1609/aaai.v34i07.6933.