1. Arendt, W., Kellermann, H.: Integrated solutions of Volterra Integro-differential equations and applications, In: Volterra integrodifferential equations in Banach spaces and applications (Da Prato, G. and Iannelli, M., eds.), Longman, Harlow, 1989.
2. Fattorini, H. O.: Second order linear differential equations in Banach spaces, Elsevier Science Publishers B. V., Amsterdam, 1985.
3. Hennig, B., Neubrander, F.: On representations, inversions and approximations of Laplace tranforms in Banach spaces, Semesterbericht Funktionalanalysis, Tübingen, 17(1989/90) 85?107.
4. Lions, J. L.: Un remarque sur les applications du théorème de Hille-Yosida, J. Math. Soc. Japan 9 (1957), 62?70.
5. Lizama, C.: Laplace transforms and the Trotter-Kato theorem, In: Workshop on operator semigroups and evolution equations, Semesterbericht Funktionalanalysis, Tübingen, 1989.