Output response identification in a multistable system for piezoelectric energy harvestingPeter Harris, Mustafa Arafa, Grzegorz Litak, Chris R. Bowen and Joanna IwaniecEur. Phys. J. B, 90 1 (2017) 20DOI: https://doi.org/10.1140/epjb/e2016-70619-y