1. S. Amni, C. T. H. Baker, P. J. van der Houwen and P. H. M. Walkenfelt, Stability analysis of numerical methods for Volterra integral equations with polynomial convolution kernels,J. Integral Equation,5 (1983), 73–93.
2. C. T. H. Baker and M. S. Keech, Stability region in the numerical treatment of Volterra integral equations,SIAM J. Numer. Anal.,15 (1978), 349–417.
3. R. Bellman and K. L. Cooke,Differential-Difference Equations, Academic Press, New York, San Francisco, London (1953).
4. J. M. Bownds, J. M. Cushing and R. Schutte, Existence, uniqueness and extendility of solutions of Volterra integral system with multiple variable lags, Funkcial. Ekvac.,19 (1976), 101–111.
5. B. Cahlon, J. Nachman and D. Schmidt, Numerical solution of Volterra integral equations with delay arguments,J. Integral Equations,7, (1984), 191–208.