1. Numerical methods for functional differential equations;Cryer,1972
2. Catastrophy Theory for Scientists and Engineers;Gilmore,1981
3. Real Analysis;Lang,1983
4. Constrained equations; a study of implicit differential equations and their discontinuous solutions;Takens,1976
5. The approximate solution of Volterra differential systems with state-dependent time lags;Tavernini;SIAM J. Numer. Analysis,1978