Classification
CBA - Gmelin handbook
57
HCN - Nuclear medicine
56
L - Life sciences ( journals )
43
YPB - Economy - general aspects
43
HHE - Haematopoiesis, blood cells - without thrombocytes
41
UED - Environmental policy
41
HJE - Immunology - experimental
40
UMV - Climatic change
39
YBB - Law - general
38
AFG - Large scale research institutions (Helmholtz Centres)
37
LMN - Molecular biophysics, biophysical chemistry
36
FGM - Microelectronic technology
35
YFA - Labour legislation
35
YRD - Technology assessment
34
DSA - Computer graphics, image/photo editing
32
FGK - Thin film technology, epitaxy
32
H - Medicine ( journals )
31
HCR - Imaging techniques in medicine
31
PAD - Physics - comprehensive works
31
FAF - Materials research - comprehensive works
30
GVA - Oceanography
30
LLE - Protein chemistry - general aspects
30
CEV - Chemistry of functional groups
29
DNC - Internet
29
EWA - Energy economy
29
HTE - Oncology - general
29
MSD - Mathematical methods in physics
29
T - Engineering sciences ( journals )
28
UCA - Environmental problems, man and environment - general aspects
28
URA - Soil chemistry
28
ACE - Germanic languages, Indo-Germanic languages
27
LRP - Cytology - cell physiology
27
P - Physics ( journals )
27
YZA - Politics, political science
27
EXA - Energy policy
26
HEE - Human physiology - general aspects
26
MSB - Chaos, nonlinear dynamical systems
26
PAE - Physics - general interest
26
HCI - Radiation biology, dosimetry
25
CUUB - NMR (Nuclear Magnetic Resonance) spectroscopy
24
EPK - Nuclear energy
24
TAA - Engineering sciences - reference books
24
UPT - Water pollution control and measurement
24
YPG - Business management
24
FFPG - Multilayer systems, quantum structures
23
LOH - Genetics - methods
23
C - Chemistry ( journals )
22
FJLB - Physics of semiconductor devices
22
HBA - Medical physics
22
PKA - Elementary particles, nuclei - general
22
more ...