TY - JOUR T1 - A multi-layer active elastic metamaterial with tuneable and simultaneously negative mass and stiffness JO - Smart Materials and Structures UR - https://eprints.whiterose.ac.uk/79762/ PY - 2014/06/12 AU - Pope SA AU - Laalej H ED - DO - DOI: 10.1088/0964-1726/23/7/075020 VL - 23 IS - 7 SP - --- Y2 - 2025/06/21 ER -