1. A new approach to synthesis problems in linear systems theory;Antoulas;IEEE Trans. Automat. Control,1985
2. J. A. Ball, I. Gohberg, and L. Rodman, Interpolation of Rational Matrix Functions, Oper. Theory Adv. Appl. 45, Birkhäuser, Basel.
3. Controlled and Conditioned Invariants in Linear System Theory;Basile,1992
4. Multivariable Nyquist criteria, root loci, and pole placement: A geometric viewpoint;Brockett;IEEE Trans. Automat. Control,1981
5. Linear System Theory;Callier,1991