Petropoulos, Liron. “A Survey of Methods and Architectures for Optimized Sparse Spatial Self-Nested Graph Neural Networks for Secure MU-MIMO-OFDM Systems: Channel Estimation, Attack Detection and Mitigation”. International Journal on Advanced Computer Theory and Engineering, vol. 14, no. 2, Nov. 2025, pp. 278-84, doi:10.65521/ijacte.v14i2.2765.