1. Modern Foundations of Systems Engineering;Porter,1966
2. Lagrange and Hermite interpolation in Banach space;Prenter;J. Approx. Theory,1971
3. Basic Concepts in System Theory;Porter;Systems Engineering Lab. Tech. Rep. No.,1969
4. On time related properties of nonlinear systems;Desantis;SIAM J. Appl. Math.,1973
5. Theory of Volterra operators in Hilbert space and applications;Gohberg;Amer. Math. Soc.,1970