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From primary to final energy consumption : analysing structural and efficiency changes on the energy supply side
Landwehr, Michael, (1997)
Energy efficiency indicators : the European experience
Bosseboeuf, Didier, (1999)
Fachberichte - Abwasserbehandlung - Wastewater in the German Paper-, Textile- and Leatherindustries
Hillenbrand, Th, (1999)