ZB 152 IEK-9 2 IEK-STE 2 IBG-1 1

Brecht, C. 8 Wagner, H. 7 Buros, J. 4 Klatt, Heinz-Jürgen 3 Steiner, Ladislau. 3 Busch, Kurt. 2 more ... Friedensburg, F. 2 Grebe, W. H. 2 Haeusser, I. 2 Klatt, H. J. 2 Kühndelt, H. 2 Merten, D. 2 Teipel, Ulrich 2 Wegner, H. U. 2 Adelhardt, Werner 1 Albrecht, Wilhelm 1 Aleshin, Eugene 1 Altenpohl, Dietrich Gustav 1 Anders, Gerhard 1 Angermeier, Hans-Otto 1 Barham, B. 1 Behr, Arno 1 Bender, F. 1 Berg, G. 1 Berthold, G. 1 Berthold, Günter 1 Betz, J. 1 Bever, M. B. 1 Bleicher, Alena 1 Boberg, R. 1 see all ... less ...

raw material supply 19 raw material policy 18 mining 15 energy planning 12 energy statistics 11 petrochemistry 11 more ... raw material consumption 11 environmental protection 10 oil 10 petrochemical industry 10 petroleum 10 petroleum exploration 10 electricity 9 gas 9 petroleum geology 9 raw material shortage 9 petroleum deposit 8 raw material 8 petroleum geochemistry 7 mineral resources 5 petroleum formation 5 petroleum reserve 5 fossil fuel 4 heavy oil 4 hydrocarbon 4 lignite deposit 4 lignite mining 4 natural gas deposit 4 natural gas production 4 petroleum demand 4 see all ... less ...

GWA - Raw material economy, raw material policy 155 GCAC - Regional geology - noneuropean countries 9 GWBA - Raw material resources, raw material reserves 7 EXA - Energy policy 5 AZZ - Firm index - general 4 GWB - Raw materials - metals, nonmetals 4 more ... ECA - Energy resources 3 EFA - Petroleum, natural gas 3 GDA - Engineering geology - general 3 GMP - Geochemical exploration 3 UED - Environmental policy 3 CEO - Natural organic products 2 GCAB - Regional geology - european countries 2 GWC - Ore deposits 2 UEF - Sustainability 2 UEN - Environmental economy 2 YPB - Economy - general aspects 2 YPO - Economic policy 2 YPW - Economy of industry branches 2 CWE - Chemical engineering, chemical industry - general 1 CXA - Coal and fossil fuel - chemistry and technology 1 CXRS - Petroleum 1 EFP - Petroleum production, natural gas production 1 EHA - Renewable energy sources 1 ENA - Energy from biomass and waste 1 EWA - Energy economy 1 GBAA - Geology - textbooks 1 GCA - Regional geology 1 GCAA - Regional geology - Germany 1 GFA - Mineralogy - general 1 see all ... less ...

German 19 English 8