Media type: E-Article Title: Towards the Design of Metamaterials with Enhanced Damage Sensitivity: Second Gradient Porous Materials Contributor: Madeo, Angela; Placidi, Luca; Rosi, Giuseppe imprint: Informa UK Limited, 2014 Published in: Research in Nondestructive Evaluation Language: English DOI: 10.1080/09349847.2013.853114 ISSN: 0934-9847; 1432-2110 Origination: Footnote: