Classification
TNE - Water cooled reactors
15
URA - Soil chemistry
11
GNA - Geology - soil sciences
10
UPK - Water resources, water supply
10
UPVC - Groundwater
10
UPT - Water pollution control and measurement
9
GTAK - Hydrogeology
8
UXS - Radioactive waste management
7
TNO - Nuclear reactor safety
6
UPN - Water protection, water quality, clean water
6
USNG - Waste water treatment - biological aspects
6
GMAB - Hydrogeochemistry
5
UPVF - Surface waters - streams, rivers, lakes
5
CHRV - Water and its properties
4
GTAP - Hydrological investigation methods
4
LCNC - Soil science - water transport
4
LWH - Agriculture - soil sciences
4
UPP - Water pollution
4
CXXL - Electrochemical hydrogen production
3
LCK - Ecology - general aspects
3
TNJ - Nuclear reactor technology
3
UCS - Environmental chemistry
3
UPC - Water - general aspects
3
USN - Waste water treatment
3
CNW - Electrochemical energy production and conversion
2
GAN - Geosciences - mathematical methods, computer applications
2
GSC - Remote sensing
2
GTA - Hydrology - general
2
LCL - Biotopes, ecosystems
2
LCO - Hydrobiology
2
LEL - Botany - lower plants
2
LHY - Bacteria - physiology
2
LWE - Agriculture - general aspects
2
LWW - Agriculture - transfer factors, radioagronomy
2
THL - Thermodynamics - technical aspects
2
THQ - Fluid mechanics and dynamics
2
TND - Gas cooled reactor types
2
TNL - Nuclear fuel, nuclear fuel elements - general
2
UAN - Environment - mathematical methods, computer applications
2
UCQ - Environmental technology
2
UHN - Landscape ecology
2
UMC - Atmospheric physics
2
UMV - Climatic change
2
UPTF - Organic pollutants in water
2
USNH - Waste water treatment - special methods
2
UUD - Ecotoxicology
2
UVF - Environmental aspects of heavy metals and their compounds
2
UXW - Underground disposal of radioactive waste
2
CLJ - Catalyst materials
1
CMD - Photochemistry - special aspects
1
more ...