Classification
UCG - Control of environmental pollution
7
LWH - Agriculture - soil sciences
4
LWV - Agriculture - plant protection
3
LWW - Agriculture - transfer factors, radioagronomy
3
LWE - Agriculture - general aspects
2
URA - Soil chemistry
2
UVR - Environmental aspects of halogens and halogenated hydrocarbons
2
LCL - Biotopes, ecosystems
1
LEN - Plant physiology
1
LENI - Plant physiology - transport processes
1
LWF - Agriculture - methods
1
UMN - Air pollution control and measurement
1
UVCH - Accumulation in biomaterial
1
UXH - Nuclear radiation measurement
1