Classification
DNC - Internet
8
HCR - Imaging techniques in medicine
5
LOH - Genetics - methods
4
YPG - Business management
4
CAA - Chemistry - reference books
2
CAU - Laboratory and safety engineering in chemistry
2
DAA - Information technology - reference books
2
DYB - Neural networks and computing
2
EAA - Energy - reference books
2
EHA - Renewable energy sources
2
GAA - Geosciences - reference books
2
GRAD - Earth atmosphere, weather
2
HAA - Medicine - reference books
2
LAA - Biology - reference books
2
LGT - Neurobiology, neurophysiology
2
LKH - Biochemistry - methods
2
PAA - Physics - reference books
2
PLA - Astrosciences - general
2
TAT - Engineering Standards
2
TCL - High frequency engineering
2
THI - Robotics
2
TKH - Air flight, space flight
2
TKJ - Traffic
2
TKJD - Pedestrian dynamics
2
UHK - Traffic and environment - incl. automobile exhaust gas
2
YPD - Business economics
2
D - Computer sciences
1
DMF - Software engineering
1
DOL - Programming language - Python
1
DOQ - Programming languages - Internet
1
DOR - Programming languages - JAVA, C#, Mono, .NET
1
DTAF - MS - Excel
1
DWI - Information management
1
DWID - Multimedia, hypertext
1
FAA - Materials research - reference books
1
FGN - Nanotechnology
1
GCAA - Regional geology - Germany
1
GKAF - Geomagnetism
1
GSC - Remote sensing
1
GUA - Geography - general
1
HCE - Biomedical engineering - general aspects
1
HDE - Neurology - general aspects
1
HDF - Brain - anatomy, function, disorders
1
HTE - Oncology - general
1
LGN - Zoology - anatomy, systematics, embryology
1
LGVC - Visual perception, imaging systems
1
LLE - Protein chemistry - general aspects
1
LONG - Gene expression, regulation
1
LPD - Bioinformatics
1
LRE - Cytology - general aspects
1
more ...