?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.au=Nakicenovic%2C+N.&rft.aulast=Nakicenovic&rft.aufirst=N.&rft.date=1996&rft.isbn=0-946777-35-7&rft.title=Long-term+perspectives%3A+Energy%2C+development+and+the+environment&rft.genre=proceeding