This page contains a list of references.

A. E. Byson, Jr., M. N. Desal and W. C. Hoffman, Energy-State Approximation in Performance Optimization of Supersonic Aircraft, Journal of Aircraft, 6 (1969), pp. 481-488.

A. E. Byson, Jr. and Y.-C. Ho, Applied Optimal Control, John Wiley & Sons, New York, NY, 1975