1. Benner, P., Hossain, M.S., and Stykel, T. (2011a). Low-rank iterative methods of periodic projected Lyapunov equations and their application in model reduction of periodic descriptor systems. Chemnitz Scientific Computing Preprints 11–01. Available from http://www.tu-chemnitz.de/mathematik/csc/2011/csc11-01.pdf.
2. Model reduction of periodic descriptor systems using balanced truncation;Benner;Model Reduction in Circuit Simulation,2011
3. Numerical solution of large Lyapunov equations, Riccati equations, and linear-quadratic control problems;Benner;Numer. Linear Algebra Appl.,2008
4. Model reduction based on spectral projection methods;Benner;Dimension Reduction of Large-Scale Systems,2005
5. Invariant representations of discrete-time periodic systems;Bittanti;Automatica,2000