@ARTICLE {8700,
author={M.  Morgado and L.F. Morgado and N. Silva and R. Morais},
doi={10.1016/j.proeng.2012.09.340},
journal={Procedia Engineering},
title={Nonlinear Modeling of Vibrational Energy Harvesters for Smart Prostheses},
year={2012},
month={October},
volume={47},
number={0},
pages={1089-1092},
ISSN={1877-7058}
}