@article{articleb520138b,
title   = {Piezoelectric effect in composite polyurethane-ferroelectric ceramics},
author = {Sakamoto, W. K. and Shibatta-Kagesawa, S. and Kanda, D. H. F. and Fernandes, S. H. and Longo, E. and Chierice, Gilberto Orivaldo},
year = {1999},
journal   = {Physica Status Solidi (A)}
}