Anh, Nguyen Thuy, and Nguyen Le Anh. “ON THE STATE-OPTIMIZATION APPROACH TO SYSTEM PROBLEMS: OPENED LOOP THINKING SOLUTIONS”. <i>Vietnam Journal of Science and Technology</i> 49, no. 1 (August 7, 2012). Accessed January 10, 2026. https://vjs.ac.vn/jst/article/view/1821.