?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Ha%2C+Su+Wook&rft.aulast=Ha&rft.aufirst=Su+Wook&rft.date=March+2012&rft.issn=1687-7268&rft.atitle=An+Environmental+Monitoring+System+for+Managing+Spatiotemporal+Sensor+Data+over+Sensor+Networks&rft.title=Journal+of+Sensors&rft.genre=article