1. THE INFLUENCE OF THE YOUNG MODULUS ON TWO ELEMENTS OF A WARREN TRUSS ON THE DYNAMIC BEHAVIOR OF THE STRUCTURE. Authors: DAN ALEXANDRU PÎRȘAN.2. THE INFLUENCE OF THE CHANGE OF THE LONGITUDINAL MODULUS OF ELASTICITY ON THE DYNAMIC BEHAVIOR OF A WARREN TRUSS. Authors: DAN ALEXANDRU PÎRȘAN, ZENO-IOSIF PRAISACH.3. DYNAMIC BEHAVIOR OF A WARREN TRUSS BEAM UPON LOOSENING OF A BOLT IN A TRUSS NODE. Authors: DAN ALEXANDRU PÎRȘAN.