PageHeader : Funkcialaj Ekvacioj, 30 (1987) 135-145 Title : Decay Estimates for Some Semilinear Wave Equations Title : with Degenerate Dissipative Terms AuthorInfo : By AuthorInfo : Mitsuhiro NAKAO and Hiroto KUWAHARA AuthorInfo : (Kyushu University, Japan) section : 1. Introduction section : 2. Result and the proof section : References