First Author:   Juan Gabriel Brida Free University of Bolzano, Italy JuanGabriel.Brida@unibz.it   Via Sernesi 1 Bolzano, 39100, Italy   +39 0471 013492(Phone) +39 0471 013492(Fax) Second Author: Stefan Franz Schubert Free University of Bolzano, Italy StefanFranz.Schubert@unibz.it   Via Sernesi 1 Bolzano, 39100, Italy   +39 0471 013495(Phone) +39 0471 013009(Fax)