Classification
ESB - Hydrogen energy
10
ETF - Fuel cells - general
10
UHK - Traffic and environment - incl. automobile exhaust gas
5
ETC - Energy conversion
4
TKJ - Traffic
4
CXX - Hydrogen production - chemistry and technology
2
EHA - Renewable energy sources
2
EVN - Energy supply - future aspects
2
CXRU - Synthetic fuels
1
UMB - Atmospheric chemistry
1