Xueying Zhang, James C. Newman III, Weiyang Lin, and W. Kyle Anderson. “Time-Dependent Adjoint Formulation for Metamaterial Optimization Using Petrov-Galerkin Methods”. Applied Computational Electromagnetics Society Journal (ACES) 33, no. 02 (July 25, 2021): 236–239. Accessed July 17, 2024. https://journals.riverpublishers.com/index.php/ACES/article/view/9303.