He, X. et al. 2026. Dual Mamba for Node-Specific Representation Learning: Tackling Over-Smoothing with Selective State Space Modeling. Proceedings of the AAAI Conference on Artificial Intelligence. 40, 26 (Mar. 2026), 21672–21680. DOI:https://doi.org/10.1609/aaai.v40i26.39317.