Classification
YRB - Social sciences, sociology
363
YRA - Social studies
78
HDG - Psychology, psychiatry
63
YRC - Technology and society
22
AHP - Philosophy
16
MWH - Statistics
16
YRE - Risk assessment
16
DPA - Electronic data processing - applications
15
YPB - Economy - general aspects
15
DMC - Computer programs
14
MWHH - Numerical and graphical methods in statistics
12
AHN - Media and communication science
11
DOO - Programming language - SPSS, R, S etc.
11
UCA - Environmental problems, man and environment - general aspects
10
AHF - Research and science
9
AHM - Theory of science
9
YZA - Politics, political science
9
UED - Environmental policy
8
YPGE - Human resource planning, human resource management
8
YRAB - Gender studies
7
AHK - Scientific work
6
AHPC - Ethics
6
LGO - Sociobiology, ethology
6
UEF - Sustainability
6
UMV - Climatic change
6
YPG - Business management
6
YRAF - Equal opportunities
6
DNC - Internet
5
HYB - Public health, health politics
5
LAA - Biology - reference books
5
MWHL - Modeling, classification, clustering
5
UCN - Environmental education
5
AMA - Education - general
4
AQD - Reference guides to social sciences
4
DAA - Information technology - reference books
4
DYA - Artificial intelligence
4
HAA - Medicine - reference books
4
HYG - Occupational medicine, sports medicine
4
MSH - Mathematical methods in life sciences
4
PAA - Physics - reference books
4
YPF - Labour science
4
AHPE - Philosophy of Science
3
AMAB - Industrial training, further education
3
CAA - Chemistry - reference books
3
EAA - Energy - reference books
3
GAA - Geosciences - reference books
3
GUA - Geography - general
3
GUAB - Geography - anthropological
3
MWA - Probability theory - general
3
MWB - Stochastic processes
3
more ...