Adams, Jay L., Robert J. Veillette, and Tom T. Hartley. “A Method for the Hankel-Norm Approximation of Fractional-Order Systems”. Journal of Applied Nonlinear Dynamics 6, no. 2 (August 17, 2026): 153–171. Accessed August 17, 2026. https://lhscientificpublishing.com/index.php/jand/article/view/745.