Abstract
When the plant (main process, controlled object) of a control system is specified by known differential equations, and the controller is subject to known constraints (especially saturation, physical realizability) it is often possible theoretically to design the controller so as to minimize some given performance criterion. The optimum controller usually turns out to be an instantaneous non-linear function of certain phase coordinates (state coordinates). Literature on this type of optimum control is listed chronologically up to 1961 in this bibliography which totals 326 items. The bibliography is partial and provisional.