PageHeader : Funkcialaj Ekvacioj, 36 (1993) 433-478 Title : Periodic Solutions of Nonlinear Abstract Differential Title : Equations with Infinite Delay* AuthorInfo : By AuthorInfo : Bo ZHANG AuthorInfo : (Fayetteville State University, U. S.A.) section : Introduction section : 1. A general theorem section : 2. Parabolic equations section : 3. The damped wave equations subsection : 3.1. A wave equation with linear damping subsection : 3.2. Strongly damped wave equations section : 4. Functional differential equations with infinite delay section : References