?url_ver=Z39.88-2004&rft_id=10.1109%2FICIAS.2012.6306227&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Ahmad%2C+M.R.&rft.aulast=Ahmad&rft.aufirst=M.R.&rft.date=2012&rft.title=Design%2C+modeling+and+analysis+of+the+trapezoidal+electrodes+structure+for+electrets+energy+harvester&rft.isbn=9781457719677&rft.genre=proceeding