Classification
ETC - Energy conversion
6
EVA - Energy demand, energy supply - comprehensive works
3
EWA - Energy economy
3
EXA - Energy policy
3
EAD - Energy - comprehensive works
2
EBA - Energy production, energy technology
2
EHA - Renewable energy sources
2
EVN - Energy supply - future aspects
2
EVP - Energy models, energy system analysis
2
TIG - Reliability, safety, quality control
2
TKJ - Traffic
2
UHK - Traffic and environment - incl. automobile exhaust gas
2
UKE - Environment and energy resources
2
UMV - Climatic change
2
YPB - Economy - general aspects
1