The Bang Bang Servo Problem Treated by Variational Techniques - Charles A. Desoer (Inf. Control., 1959)

Stability of a nonlinear time-invariant feedback system under almost constant inputs. - Charles A. Desoer; M. Y. Wu (Autom., 1969)

Open-loop unstable convolution feedback systems with dynamical feedbacks. - Frank M. Callier; Charles A. Desoer (Autom., 1976)

Review of "Nonlinear Systems Analysis" by Mathukumalli Vidyasagar. - Charles A. Desoer (IEEE Trans. Syst. Man Cybern., 1980)