Classification
EUC - Energy conservation - civil engineering
75
EUA - Energy conservation - general
43
EXA - Energy policy
15
EHA - Renewable energy sources
14
EWA - Energy economy
14
TKB - Civil engineering - buildings
14
UKA - Environmental damage and energy production
13
EIM - Solar architecture
12
EBA - Energy production, energy technology
9
EUD - Energy consumption
9
EVA - Energy demand, energy supply - comprehensive works
9
EVB - Energy supply of Germany
9
ETC - Energy conversion
7
UKE - Environment and energy resources
7
EAD - Energy - comprehensive works
5
EAE - Energy - general
4
ETA - Energy storage
4
EVP - Energy models, energy system analysis
4
TAT - Engineering Standards
4
UKB - Environmental effects and energy
4
YDS - Building law
4
ECA - Energy resources
3
EIA - Solar energy - general
3
ENA - Energy from biomass and waste
3
EVN - Energy supply - future aspects
3
UCJ - Environmental protection - general aspects
3
EAA - Energy - reference books
2
EIC - Solar thermal energy conversion
2
EIK - Solar energy application
2
EPK - Nuclear energy
2
ETF - Fuel cells - general
2
EUK - Waste heat utilization, heat recovery
2
EUU - Cogeneration
2
PCA - Thermodynamics
2
TKA - Civil engineering - general
2
TKD - Air conditioning, refrigeration
2
UEF - Sustainability
2
UMV - Climatic change
2
YPO - Economic policy
2
YZA - Politics, political science
2
CHG - Physical chemistry - general aspects
1
CHX - Chemical thermodynamics
1
CNO - Electrolytes
1
CNR - Electrodes
1
DYBF - Fuzzy systems
1
EIP - Photovoltaics
1
EKA - Wind energy
1
ESA - Synthetic fuels - utilization
1
FMPB - Steel production
1
PGEF - Plasma flow, magnetohydrodynamics
1
more ...