Classification
ESB - Hydrogen energy
14
ETF - Fuel cells - general
9
ETA - Energy storage
4
TKJ - Traffic
4
UHK - Traffic and environment - incl. automobile exhaust gas
4
CXX - Hydrogen production - chemistry and technology
2
EHA - Renewable energy sources
2
ESA - Synthetic fuels - utilization
2
EVA - Energy demand, energy supply - comprehensive works
2
EVB - Energy supply of Germany
2
EWA - Energy economy
2
EXA - Energy policy
2
U
2
E
1
MWG - Simulation, Monte Carlo method, random numbers
1