Hameed K. A state space approach via Discrete Hartley transform of type and  For the solution of the State model of Linear time-invariant systems (L.T.I.S’s.). IJApSc [Internet]. 2025 Mar. 30 [cited 2025 Apr. 25];2(1):53-60. Available from: https://ijas.uodiyala.edu.iq/index.php/IJAS/article/view/175