Basic Optimal Estimation and Control Problems in Hilbert Space. - Romano M. DeSantis; R. Saeks; L. J. Tung (Math. Syst. Theory, 1978)

A Root Locus Technique for Interconnected Systems. - Raymond A. DeCarlo; R. Saeks (IEEE Trans. Syst. Man Cybern., 1979)

A New Performance Measure for Stochastic Optimization in Hilbert Space. - Avraham Feintuch; R. Saeks; C. Neil (Math. Syst. Theory, 1981)