Kazuyoshi Mori, Number of Parametrization of Discrete-Time Systems without Unit-Delay Element: Single-Input Single-Output Case. journal = {International Journal of Electrical and Information Engineering}, [online]. World Academy of Science, Engineering and Technology. June 2017, vol. 126(6). 778 - 782 [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10007548.