@inbook{inbook1540af5e,
title   = {Flextensional actuator design using topology optimization and the homogenization method: theory and implementation},
author = {Silva, Emílio Carlos Nelli and Nishiwaki, Shinji and Kikuchi, N.},
year = {1999},
publisher = {Kluwer Academic},
journal   = {Smart structures : requirements and potential applications in mechanical and civil engineering}
}