Classification
ETC - Energy conversion
EHA - Renewable energy sources
2
EVN - Energy supply - future aspects
2
LEL - Botany - lower plants
2
LTN - Biotechnology - biodegradation
2
CNWK - Electric batteries
1
EAE - Energy - general
1
EIC - Solar thermal energy conversion
1
ETA - Energy storage
1
EWA - Energy economy
1