Classification
HYE - Environmental health
10
TCLD - Electromagnetic compatibility, pulse technique
3
UVC - Environmental chemicals, hazardous materials - general aspects
3
HPT - Toxicology
2
UAD - Environment - comprehensive works
2
GNA - Geology - soil sciences
1
HBC - Physiological chemistry, biochemistry
1
HYB - Public health, health politics
1
LWH - Agriculture - soil sciences
1
URA - Soil chemistry
1
UUD - Ecotoxicology
1
UVW - Special effects of hazardous materials
1