Yu, C; Li, L; Li, Y; Sun, D; Li, L; Huang, Z; Loh, T H (2023) DOA Estimation for RIS Assisted Multi-User Wireless Communication System with Squared-Sine Error Criterion and Lawson Norm Constraint. In: 2023 IEEE 6th International Conference on Electronic Information and Communication Technology (ICEICT), 21-24 July 2023, Qingdao, China.