1. Retarded differential equations with piecewise constant delays;Cooke;J. Math. Anal. Appl.,1984
2. Differential equations with piecewise constant delays;Wiener,1983
3. Advanced differential equations with piecewise constant argument deviations;Shah;Internat. J. Math. Math. Sci.,1983
4. Pointwise initial-value problems for functional differential equations;Wiener;Differential Equations,1984
5. Generalized Solutions of Functional Differential Equations;Wiener,1993