Haider, S., S. Ali, H. Muazzam, R. Mokhtar, and K. Saleem. “Balanced Truncation of Stable Discrete Time Second-Orderly Structured Systems”. Technical Journal, Vol. 27, no. 03, Sept. 2022, pp. 10-16, https://tj.uettaxila.edu.pk/index.php/technical-journal/article/view/1721.