Classification
YZA - Politics, political science
533
YPB - Economy - general aspects
166
AHF - Research and science
27
YUD - Comprehensive statistical data - Germany
24
YBB - Law - general
16
YPM - National economy
16
YRC - Technology and society
14
YRA - Social studies
12
EXA - Energy policy
11
UED - Environmental policy
11
YUC - Comprehensive statistical data
11
AEG - Official corporations - Germany
10
EPK - Nuclear energy
10
YEN - Atomic energy law
10
YRB - Social sciences, sociology
9
AHP - Philosophy
8
AMA - Education - general
7
UA - Environment - general
6
AED - Official corporations - international and supranational
4
AHM - Theory of science
4
AJA - Directories - general
4
TNW - Nuclear controversy
4
AHA - Research and development, research politics - general
3
TCA - Communication science - general
3
UEA - Environmental policy and economy - general aspects
3
UEDM - Policy of clean air
3
YPO - Economic policy
3
AHC - Research and development, research politics - Germany
2
AHX - History - general
2
DNC - Internet
2
DWI - Information management
2
HYB - Public health, health politics
2
LTE - Biotechnology - general aspects
2
TIG - Reliability, safety, quality control
2
TNA - Nuclear engineering - general
2
UCJ - Environmental protection - general aspects
2
UPK - Water resources, water supply
2
UXPN - Nonproliferation, nuclear weapons
2
UXS - Radioactive waste management
2
YBA - Law - encyclopaedic glossaries
2
YMA - International law
2
YPI - Corporate governance
2
YRAF - Equal opportunities
2
YRCD - Informatics, information and society
2
YRG - Technology transfer
2
AAE - Popular science - general aspects
1
ABD - National biographic catalogues - Germany
1
ACA - Languages, dictionaries - general
1
ACZ - Lists of abbreviations
1
AEK - Official corporations - Europe
1
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