@article{article2de6a384,
title   = {Multi-actuated functionally graded piezoelectric micro-tools design: a multiphysics topology optimization approach},
author = {Carbonari, Ronny Calixto and Silva, Emílio Carlos Nelli and Paulino, Gláucio Hermogenes},
year = {2009},
doi = {10.1002/nme.2403},
journal   = {International Journal for Numerical Methods in Engineering}
}