Classification
LWA - Agriculture - reference books
38
YUD - Comprehensive statistical data - Germany
16
LVE - Food science - general
10
LAA - Biology - reference books
8
YUS - Other statistical data
6
LWE - Agriculture - general aspects
2
AMA - Education - general
1
CTA - Chemical analysis - comprehensive works
1
CWB - Chemical engineering - comprehensive works
1
EBA - Energy production, energy technology
1
ECA - Energy resources
1
HPD - Pharmacology - comprehensive works
1
HYB - Public health, health politics
1
LET - Phytopathology
1
LVH - Food science - technologies
1
LVN - Food science - chemistry, analytics
1
LWA - Agriculture - reference books
1
LWF - Agriculture - methods
1
LWV - Agriculture - plant protection
1
LWVC - Plant protection
1
UCE - Environmental impact, environmental pollution
1
UVC - Environmental chemicals, hazardous materials - general aspects
1
YUC - Comprehensive statistical data
1