[1]
J. Vittek, P. Makyˇs, M. Posp´ıˇsil, E. Szychta, and M. Luft, “State - space control of the drive with PMSM and flexible coupling”, AoT, vol. 23, no. 1, pp. 77–90, Mar. 2011, doi: 10.2478/v10174-011-0006-9.