?url_ver=Z39.88-2004&rft_id=10.1117%2F12.2010079&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=M.R.&rft.au=Ahmad%2C+M.R.&rft.aulast=Ahmad&rft.date=2013&rft.issn=0277786X&rft.title=Design+and+modeling+of+the+trapezoidal+electrodes+array+for+electrets+energy+harvester&rft.isbn=9780819495198&rft.genre=proceeding