1. Cimino, M., & Pagilla, P. R. (2008). Parametrization of all stabilizing controllers for multirate systems. In Proc. of the 1st dynamic systems and control conference, Ann Arbor, MI.
2. Stability analysis of multiloop, multirate sampled systems;Coffey;AIAA Journal,1966
3. Stability theory for linear time-invariant plants with periodic digital controllers;Francis;IEEE Transactions on Automatic Control,1988
4. Sampled-data control systems containing periodically varying members;Friedland,1961
5. Robust control of linear time-invariant plants using periodic compensation;Khargonekar;IEEE Transactions on Automatic Control,1985