?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Bacigalupo&rft.aufirst=Andrea&rft.au=Bacigalupo%2C+Andrea&rft.issn=0964-1726&rft.date=2016&rft.title=Smart+Materials+and+Structures&rft.atitle=Optimal+design+of+auxetic+hexachiral+metamaterials+with+local+resonators&rft.issue=5&rft.volume=25&rft.genre=article