1. Ordinary and Delay Differential Equations;Driver,1977
2. Theory of Functional Differential Equations;Hale,1977
3. Differential and Integral Inequalities II;Laksmikantham,1969
4. An inclusion principle for hereditary systems;Ohta;Journal of Mathematical Analysis and Applications,1984
5. Large-Scale Dynamic Systems: Stability and Structure;Šiljak,1978