Synergistic use of smart materials for vibration-based energy harvesting L.L. Silva, S.A. Oliveira, P.M.C.L. Pacheco and M.A. Savi Eur. Phys. J. Special Topics, 224 14-15 (2015) 3005-3021 Published online: 20 November 2015 DOI: 10.1140/epjst/e2015-02603-8