1. Banks, H. T.,Approximation Methods for Optimal Control Problems with Delay-Differential Systems, Séminaires IRIA: Analyse et Contrôle de Systèmes, pp. 5?19, 1976.
2. Banks, H. T.,Delay Systems in Biological Models: Approximation Techniques, Nonlinear Systems and Applications, Edited by V. Lakshmikantham, Academic Press, New York, New York, pp. 21?38, 1977.
3. Banks, H. T., andBurns, J. A.,Hereditary Control Problems: Numerical Methods Based on Averaging Approximations, SIAM Journal on Control and Optimization, Vol. 16, pp. 169?208, 1978.
4. Banks, H. T., andBurns, J. A.,An Abstract Framework for Approximate Solutions to Optimal Control Problems Governed by Hereditary Systems, International Conference on Differential Equations, Edited by H. A. Antosiewicz, Academic Press, New York, New York, pp. 10?25, 1975.
5. Kappel, F., andSchappacher, W.,Autonomous Nonlinear Functional Differential Equations and Averaging Approximations (to appear).