Search for: [Subject and Keywords = second\-order form model] OR [Subject and Keywords = preservation of the structural conditions] OR [Subject and Keywords = balanced truncation] OR [Subject and Keywords = modal truncation] OR [Title = Extracting second\-order structures from single\-input state\-space models\: application to model order reduction] OR [Creator = Guillet, Jérôme] OR [Creator = Mourllion, Benjamin] OR [Creator = Birouche, Abderazik] OR [Creator = Basset, Michel]