Classification
LWH - Agriculture - soil sciences
2
URA - Soil chemistry
2
UUD - Ecotoxicology
CTY - Analytical problems
1
GNA - Geology - soil sciences
1
HBC - Physiological chemistry, biochemistry
1
HYB - Public health, health politics
1
HYE - Environmental health
1
LWV - Agriculture - plant protection
1
UCG - Control of environmental pollution
1
UVC - Environmental chemicals, hazardous materials - general aspects
1
UVR - Environmental aspects of halogens and halogenated hydrocarbons
1
UVW - Special effects of hazardous materials
1