Synthesis of non-linear controller to energy efficiency for damped-elastic-jointed inverted pendulumC.X. Nguyen, Th.Tr. Le, Ph.C. Tran, A.D. Lukianov, Kh.D. Truong and T.D. PhamE3S Web Conf., 279 (2021) 01020DOI: https://doi.org/10.1051/e3sconf/202127901020