1. Well-posedness and approximations of linear integrodifferential equations in Banach spaces. Volterra Equations, Proceedings;Chen,1979
2. Semigroups and integral equations;Chen;J. Integral Equations,1980
3. An abstract nonlinear Volterra integrodifferential equation;Crandall;J. Math. Anal. Appl.,1978
4. An abstract functional differential equation and a related nonlinear Volterra equation;Crandall;Isreal J. Math.,1978
5. Linear abstract integro-differential equations of hyperbolic type in Hilbert spaces;Da Prato,1980