1. H. Akashi, H. Imai, M. Adachi,On the optimal control of linear discrete-time systems by geometric approach, Int. J. Contr., Vol. 28, pp. 853–867, 1978.
2. D. Boley,Computing the controllability/observability decomposition of a linear time-invariant dynamic system, a numerical approach, Ph.D. Thesis, Comp. Sc. Dept. Stanford Univ., June 1981.
3. D. Boley, G. Golub,Block Lanczos and control theory, Proceedings Workshop on Numerical Methods in Automatic Control, Lund, Sweden, Sept. 1980.
4. R. Eising,Pole assignment, a new proof and algorithms, Memo COSOR 81-10, T.H. Eindhoven, The Netherlands, Aug. 1981.
5. A. Emami-Naeini, G. Franklin,Deadbeat control and tracking of discrete time systems, IEEE Trans. Aut. Control., Vol. AC-27, pp. 176–180, Febr. 1982.