XuS. Z., ChenJ. L., and BenítezJ. “Partial Orders Based on the CS Decomposition”. Ukrains’kyi Matematychnyi Zhurnal 72, no. 8 (August 18, 2020): 1119-1133. Accessed November 23, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/6025.