1. A note on the derivation and use of reduced-order models;Genesio;IEEE Trans. Automat. Control,1976
2. Trends in large space structure control theory: Fondest hopes; wildest dreams;Balas;IEEE Trans. Automat. Control,1982
3. R. Skelton, Modal cost analysis in model and controller reduction, in “Proceedings, 17th Allerton Conf. on Comm., Contr., and Computing, Monticello, Ill., 1079.”
4. A Symp. of the Amer. Autom. Contr. Council, 1972 Joint Autom., Contr. Conf.,1972
5. Singular perturbation method for reducing the model order in optimal control design;Kokotović;IEEE Trans. Automat. Control,1968