The Energetic Metabolism of the European Union and the United States: Decadal Energy Input Time-Series with an Emphasis on Biomass - Helmut Haberl; Helga Weisz; Christof Amann; Alberte Bondeau; Nina Eisenmenger; Karl-Heinz Erb; Marina Fischer-Kowalski; Fridolin Krausmann (Journal of Industrial Ecology, 2008)