1. The Mathematical Theory of Optimal Processes;Pontryagin,1962
2. A direct derivation of the optimal linear filter using the maximum principle;Athans;IEEE Trans. Automatic Control,1967
3. On optimal waveform design via control theoretic concepts;Athans;Inform. Control,1967
4. Optimization of Signals;Schweppe;MIT Lincoln Lab. Rept. 1965-4,1965
5. Suboptimal Design of Linear Regulator Systems Subject to Computer Storage Limitations;Kleinman,1967