S. Fialko, “High-performance aggregation element-by-element Ritz-gradient method for structure dynamic response analysis”, CAMES, vol. 7, no. 4, pp. 537–550, Mar. 2023, Accessed: Jan. 26, 2025. [Online]. Available: https://cames3.ippt.pan.pl/index.php/cames/article/view/1210