Phuoc, Nguyen Doan, Pham Van Hung, and Hoang Duc Quynh. 2017. “Output Feedback Control With Constraints for Nonlinear Systems via Piecewise Quadratic Optimization”. <i>Vietnam Journal of Science and Technology</i> 55 (3). Hanoi, VN:324-33. https://doi.org/10.15625/2525-2518/55/3/8512.