Classification
FMP - Ferrous materials, steel
30
TKJ - Traffic
22
FMS - Nonferrous metals, nonferrous alloys
13
YUS - Other statistical data
7
AHC - Research and development, research politics - Germany
6
AHA - Research and development, research politics - general
5
YUD - Comprehensive statistical data - Germany
5
YUG - Demography
4
AEG - Official corporations - Germany
3
MWH - Statistics
3
EWA - Energy economy
2
FMM - Process metallurgy
2
HAN - Medicine - mathematical methods, computer applications, databases
2
LAN - Biology - mathematical methods, statistics
2
MSH - Mathematical methods in life sciences
2
UEN - Environmental economy
2
YRAB - Gender studies
2
DOO - Programming language - SPSS, R, S etc.
1
DOZ - Programming languages - Other
1
FMV - Light metals, metallic foams
1
GAN - Geosciences - mathematical methods, computer applications
1
GBAA - Geology - textbooks
1
GRBK - Climatological data
1
HDG - Psychology, psychiatry
1
HPK - Special pharmacology, drug design
1
LPD - Bioinformatics
1
LVE - Food science - general
1
MGA - Geometry - elementary, classical
1
MSB - Chaos, nonlinear dynamical systems
1
MWHF - Experimental design, variance analysis
1
MWHI - Error analysis, balancing calculations, least squares methods
1
TCA - Communication science - general
1
TEK - Electric experiments, reliability and technology
1
UAN - Environment - mathematical methods, computer applications
1
UHCH - Urban areas
1
URA - Soil chemistry
1
UVFD - Environmental aspects of specific heavy metals - cadmium, lead, mercury
1
UXP - Radioactive materials - transport, safety
1
YPB - Economy - general aspects
1
YPGD - Quality management
1
YPW - Economy of industry branches
1
YRA - Social studies
1