L1 analysis of LTI systems via piecewise higher-order approximation. - Yong Woo Choi; Jung Hoon Kim 001; Tomomichi Hagiwara (CCA, 2015)

Computing the L∞-Induced Norm of LTI Systems: Generalization of Piecewise Quadratic and Cubic Approximations. - Jung Hoon Kim 001; Yong Woo Choi; Tomomichi Hagiwara (IEEE Access, 2020)