Kumar, R. Ravi Ravi, Jinde Cao, and Ahmad Alsaedi. “The Passivity of Adaptive Output Regulation of Nonlinear Exosystem With Application of Aircraft Motions”. Nonlinear Analysis: Modelling and Control 22, no. 3 (May 10, 2017): 366–385. Accessed May 3, 2024. https://www.journals.vu.lt/nonlinear-analysis/article/view/13392.