RT Generic SR 00 A1 Grubler, A. A1 Jefferson, M. A1 McDonald, A. A1 Messner, S. A1 Nakicenovic, N. A1 Rogner, H.-H. A1 Schrattenholzer, L. T1 Global Energy Perspectives to 2050 and Beyond LK https://pure.iiasa.ac.at/id/eprint/4404/