1. Linear Optimal control;Anderson,1971
2. Insensitivity of optimal linear control systems to persistent changes in parameters;Barnett;Int.J.Cont.,1966
3. Marges de stability et robustesse structurelle généralisées des régulateurs linéaires quadratiques multivariables;Bourlès;R.A.I.R.O.Aut.Syst.Analy. and Cont.,1982
4. The robust control of a servomechanism problem for linear time invariant multivariable systems;Davison;IEEE Trans.Aut.Cont.,1976
5. Synthesis of multivariable regulators;Francis;The internal model principle, Appl, Math.optimiz.,1974