@inbook{inbookc98e1650,
title   = {Experimental analysis of a piezoelectric energy harvester with internal resonances},
author = {Varoto, Paulo Sérgio},
year = {2017},
doi = {10.1007/978-3-319-54404-5_9},
publisher = {Springer},
booktitle   = {IMAC, A Conference and Exposition on Structural Dynamics}
}