Classification
UA - Environment - general
10
YPB - Economy - general aspects
10
CWE - Chemical engineering, chemical industry - general
9
YZA - Politics, political science
9
LWE - Agriculture - general aspects
8
HCN - Nuclear medicine
6
FMTG - High temperature alloys
5
PKN - Nuclear structure
5
CT - Chemical methods of materials analysis
4
EKA - Wind energy
4
EXA - Energy policy
4
FHG - Electron microscopy
4
LGN - Zoology - anatomy, systematics, embryology
4
TBT - Optoelectronics, optical fibers, displays
4
TBW - Sensors, actuators
4
D - Computer sciences
3
DYA - Artificial intelligence
3
FFA - Surface science, surface physics - general aspects
3
FGKF - Chemical vapor deposition
3
FLG - Superconductivity application
3
FLH - Low temperature technology, cryogenics
3
GBC - Paleoclimatology
3
HTE - Oncology - general
3
LON - Molecular genetics
3
LRP - Cytology - cell physiology
3
LVE - Food science - general
3
PKA - Elementary particles, nuclei - general
3
PLA - Astrosciences - general
3
THP - Pressure vessels, boilers, pipes
3
UED - Environmental policy
3
YBB - Law - general
3
AHF - Research and science
2
CAN - Chemistry - mathematical methods, computer applications
2
CLG - Catalysis - surveys, general aspects
2
DSA - Computer graphics, image/photo editing
2
EFA - Petroleum, natural gas
2
EFP - Petroleum production, natural gas production
2
EIP - Photovoltaics
2
EPK - Nuclear energy
2
FHEE - X-ray microscopy, surface topography
2
FHGJ - High resolution and high voltage electron microscopy
2
FHJ - Scanning electron microscopy, analytical electron microscopy
2
FLA - Low temperature physics - general aspects
2
FMHJ - Texture
2
FNN - Ceramics - general aspects
2
FPTL - High temperature corrosion
2
GMAD - Organic geochemistry
2
GRA - Meteorology
2
HCI - Radiation biology, dosimetry
2
HCR - Imaging techniques in medicine
2
more ...