1. J. Calvert, D. Gimpel, Method and apparatus for control of system output in response to system input, Patent number: 2,801,351, 1957.
2. Posicast control of damped oscillatory systems;Smith;Proceedings of the Institute of Radio Engineers,1957
3. Feedback Control Systems;Smith,1958
4. Analog study of dead-beat posicast control;Tallman;Institute of Radio Engineers Transactions on Automatic Control,1958
5. Performance measures for input shaping and command generation;Kozak;Journal of Dynamic Systems, Measurement, and Control,2006