Groenewald, G J, ter Horst, S, Jaftha, J & Ran, A C M 2019, A toeplitz-like operator with rational symbol having poles on the unit circle II : The spectrum . in V Bolotnikov, S ter Horst, A C M Ran & V Vinnikov (eds), Interpolation and Realization Theory with Applications to Control Theory : In honor of Joe Ball . Operator Theory: Advances and Applications, vol. 272, Springer International Publishing AG, pp. 133-154 . https://doi.org/10.1007/978-3-030-11614-9_7 Interpolation and Realization Theory with Applications to Control Theory ISBN: 9783030116132 Interpolation and Realization Theory with Applications to Control Theory: In honor of Joe Ball, 133-154 STARTPAGE=133;ENDPAGE=154;TITLE=Interpolation and Realization Theory with Applications to Control Theory