1. Solution of the singular discrete regulator problem using eigenvector methods;Bar-Ness;Int. J. Control,1980
2. Singularly perturbed difference equations in optimal control problems;Blankenship;IEEE Trans. Aut. Control,1981
3. Differential and difference equation systems with a small parameter for the case in which the unperturbed (singular) system is in the spectrum;Butuzov;J. Diff. Equat.,1971
4. Optimal linear regulator: The discrete-time case;Dorato;IEEE Trans. Aut. Control,1971
5. NASA's advanced control law program for the F-8 digital fly-by-wire aircraft;Elliott;IEEE Trans. Aut. Control,1977