?url_ver=Z39.88-2004&rft_id=10.1109%2FCSPA.2009.5069213&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=A.&rft.au=Khan%2C+A.&rft.aulast=Khan&rft.isbn=9781424441501&rft.date=2009&rft.title=Data+delivery+optimization+by+efficient+cluster+head+selection+of+wireless+sensor+network&rft.genre=proceeding