Classification
UMK - Air pollution - general aspects
11
UMN - Air pollution control and measurement
11
UEN - Environmental economy
2
UMB - Atmospheric chemistry
2
UMG - Technology of clean air
2
USGH - Contaminated sites
2
AEG - Official corporations - Germany
1
GRAK - Atmospheric precipitations
1
UCGE - Control of environmental pollution - analytical methods
1
UCS - Environmental chemistry
1
UED - Environmental policy
1
UEG - Environmental programs and expertises
1
UME - Clean air
1
UMLE - Air pollution by power plants and industrial plants
1
UMNC - Air pollution control by chemical analytical methods
1
UMV - Climatic change
1
UNA - Noise pollution
1
URA - Soil chemistry
1
UXC - Radioactive emission
1
UXCD - Radioactive emission by nuclear facilities
1
UXNB - Radiation protection relating to reactor safety, reactor accidents
1