1. Theory of Functionals and of Integral and Integro-Differential Equations;Volterra,1959
2. Response of a Nonlinear Device to Noise;Wiener,1942
3. Continuous Nonlinear Systems;George,1959
4. Functional Techniques for the Analysis of the Nonlinear Behavior of Phase-Locked Loops;Van Trees,1964
5. Synthesis of Optimum Nonlinear Control Systems;Van Trees,1962