Adaptive sampled-data integral control of stable infinite-dimensional linear systems. - Zhenqing Ke; Hartmut Logemann; Stuart Townley (Syst. Control. Lett., 2009)

Approximate Tracking and Disturbance Rejection for Stable Infinite-Dimensional Systems Using Sampled-Data Low-Gain Control. - Zhenqing Ke; Hartmut Logemann; Richard Rebarber (SIAM J. Control. Optim., 2009)

A Sampled-Data Servomechanism for Stable Well-Posed Systems. - Zhenqing Ke; Hartmut Logemann; Richard Rebarber (IEEE Trans. Autom. Control., 2009)

Indirect sampled-data control with sampling period adaptation. - Achim Ilchmann; Zhenqing Ke; Hartmut Logemann (Int. J. Control, 2011)