PageHeader : Funkcialaj Ekvacioj, 24 (1981), 247-258 Title : Periodic Solutions of Periodic Functional Title : Differential Equations AuthorInfo : By AuthorInfo : Tetsuo FURUMOCHI AuthorInfo : (Iwate University, Japan) AuthorInfo : Dedicated to Professors Tosiya Saito and Taro Ura AuthorInfo : on their sixtieth birthdays section : 1. Introduction section : 2. Preliminaries section : 3. Existence of periodic solutions section : 4. Applications section : 5. Remark on the uniqueness assumption section : References