Classification
EXA - Energy policy
ETC - Energy conversion
20
EAD - Energy - comprehensive works
7
UA - Environment - general
7
EWA - Energy economy
6
EGA - Oil shale, oil sands
4
TIG - Reliability, safety, quality control
3
CWE - Chemical engineering, chemical industry - general
2
ESB - Hydrogen energy
2
ETA - Energy storage
2
EVP - Energy models, energy system analysis
2
YEN - Atomic energy law
2
YPB - Economy - general aspects
2
ECA - Energy resources
1
EHA - Renewable energy sources
1
ETF - Fuel cells - general
1
EUD - Energy consumption
1
EVA - Energy demand, energy supply - comprehensive works
1
EVB - Energy supply of Germany
1
EVN - Energy supply - future aspects
1
EYA - Energy problems of developing countries
1
FMPB - Steel production
1
TNO - Nuclear reactor safety
1
UKE - Environment and energy resources
1
YZA - Politics, political science
1