@inproceedings{inproceedings88f81181,
title   = {A comparison of polymer piezoelectrets with open and closed tubular channels: pressure dependence, resonance frequency, and behavior under humidity},
author = {Altafim, Ruy Alberto Pisani and Basso, Heitor Cury and Altafim, Ruy Alberto Corrêa and Xunlin, Qiu and Wirges, Werner and Gerhard, Reimund},
year = {2011},
publisher = {IEEE},
booktitle   = {International Symposium on Electrets}
}