1. See [K2]
2. C. Byrnes, A. Lindquist, eds., Frequency Domain and State Space Methods for Linear Systems, North-Holland: Amsterdam, 1986
3. C. Byrnes, C. Martin, R. Saeks, eds, Linear Circuits, Systems, and Signal Processing: Theory and Applications, North Holland, 1988
4. G. Conte, A. Perdon, “On polynomial matrices and finitely generated torsion modules,” in AMS-NASA-NATO Summer Seminar on Linear System Theory, 18, Lectures in Applied Math, Amer Math Society: Providence, 1980
5. G. Conte, A. Perdon, “Generalized State Space Realizations of Non-proper Transfer Functions,” Systems and Control Letters, 1, 1982