Classification
UMV - Climatic change
5
UKA - Environmental damage and energy production
2
UML - Air pollution by special sources
2
EHA - Renewable energy sources
1
ESB - Hydrogen energy
1
EXA - Energy policy
1
GPAB - Flora, vegetation - geographical aspects
1
LWE - Agriculture - general aspects
1
LWV - Agriculture - plant protection
1
UA - Environment - general
1
UCA - Environmental problems, man and environment - general aspects
1
UMB - Atmospheric chemistry
1
UMK - Air pollution - general aspects
1
UVF - Environmental aspects of heavy metals and their compounds
1