Akhmetov, M. U., N. A. Perestyuk, and M. I. Tleubergenov. “Control over Linear Pulse Systems”. Ukrains’kyi Matematychnyi Zhurnal 47, no. 3 (March 25, 1995): 307–314. Accessed April 16, 2025. https://umj.imath.kiev.ua/index.php/umj/article/view/5418.