PageHeader : Funkcialaj Ekvacioj, 36 (1993) 109-121 Title : Global Bounded Weak Solutions for an Abstract Title : Nonlinear Timoshenko Beam Equation Title : with Four Propagation Speeds AuthorInfo : By AuthorInfo : A. AROSIO and S. PANIZZI AuthorInfo : (Universita di Parma, Italy) section : 1. Introduction and statement of the main result section : 2. Proof section : 3. An application section : 4. Final remarks section : References