1. Design of multivariable control systems using the inverse Nyquist array;Rosenbrock,1969
2. Return-difference and return-ratio matrices and their use in the analysis and synthesis of multivariable control systems;MacFarlane,1970
3. A simple derivation of the relation |T(s) = pc(s)po(s);Mayne,1971
4. Proceedings of the 3rd IFAC Congress;Rosenbrock,1966