?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Chalkiadakis%2C+G&rft.aulast=Chalkiadakis&rft.aufirst=G&rft.date=2011&rft.atitle=Cooperatives+of+Distributed+Energy+Resources+for+Efficient+Virtual+Power+Plants&rft.title=Proc.+Tenth+Int.+Conference+on+Autonomous+Agents+and+Multiagent+Systems&rft.pages=787-794&rft.genre=article