PageHeader : Funkcialaj Ekvacioj, 39 (1996) 69-86 Title : Stability Region for Systems of Differential-Difference Equations AuthorInfo : By AuthorInfo : Tadayuki HARA and Jitsuro SUGIE AuthorInfo : (University of Osaka Prefecture and Shinshu University, Japan) AuthorInfo : Dedicated to Professor Roberto Conti and Professor Gaetano Villari AuthorInfo : on the occasion of their 70th birthday section : 1. Introduction section : 2. Zeros of characteristic quasi-polynomials section : 3. Linear systems of differential-difference equations section : References