High performance controllers for unknown multivariable systems

Optimum Settings for Automatic Controllers

Jens Ziegler, Nancy B. Nichols · Transactions of the American Society of Mechanical Engineers · 1942 · 5.2K citations

Engineering, Industrial Engineering, Automation +11

Almost invariant subspaces: An approach to high gain feedback design--Part I: Almost controlled invariant subspaces

Jan C. Willems · IEEE Transactions on Automatic Control · 1981 · 400 citations

Engineering, Mathematics, Systems Engineering +17

Multivariable tuning regulators: The feedforward and robust control of a general servomechanism problem

E.J. Davison · IEEE Transactions on Automatic Control · 1976 · 370 citations

Engineering, Plant Sciences, Dynamical Systems +10

Multivariable tuning regulators for unknown systems

J. Penttinen, H.N. Koivo · Automatica · 1980 · 135 citations

Engineering, Mathematics, Systems Engineering +13

Asymptotic behaviour of root-loci of linear multivariable systems

B. Kouvaritakis, U. Shaked · International Journal of Control · 1976 · 121 citations

Natural Sciences, Mathematics, Systems Engineering +16