Lian, D., Z. Zhang, W. Luo, L. Hu, M. Wu, Z. Li, J. Yu, and S. Gao. “RGBD Based Gaze Estimation via Multi-Task CNN”. Proceedings of the AAAI Conference on Artificial Intelligence, vol. 33, no. 01, July 2019, pp. 2488-95, doi:10.1609/aaai.v33i01.33012488.