Yoshimichi Ito Tomomichi Hagiwara Hajime Maeda Mituhiko Araki Bisection algorithm for computing the frequency response gain of sampled-data systems - infinite-dimensional congruent transformation approach. 369-381 2001 46 IEEE Trans. Autom. Control. 3 https://doi.org/10.1109/9.911415 db/journals/tac/tac46.html#ItoHMA01