Classification
TNK - Nuclear reactor components - general
9
AQSP - Catalogues of individual libraries - monographs
8
HDF - Brain - anatomy, function, disorders
8
CWE - Chemical engineering, chemical industry - general
6
FHTD - Mössbauer spectroscopy
6
LVH - Food science - technologies
6
THP - Pressure vessels, boilers, pipes
6
TNB - Nuclear power plants
6
TNJB - Nuclear reactor materials
6
UA - Environment - general
6
EFA - Petroleum, natural gas
5
GWB - Raw materials - metals, nonmetals
5
LGN - Zoology - anatomy, systematics, embryology
5
TBT - Optoelectronics, optical fibers, displays
5
DGC - Parallel and vector computers
4
ECA - Energy resources
4
EGA - Oil shale, oil sands
4
EXA - Energy policy
4
HBA - Medical physics
4
LCK - Ecology - general aspects
4
LCL - Biotopes, ecosystems
4
LGR - Animal physiology
4
LKH - Biochemistry - methods
4
LLE - Protein chemistry - general aspects
4
LRH - Cytology - methods
4
LWY - Fishery and aquaculture
4
MSB - Chaos, nonlinear dynamical systems
4
MWH - Statistics
4
THD - Design and construction in mechanical engineering
4
THF - Finite element methods - engineering aspects
4
YZA - Politics, political science
4
CH - Physical chemistry
3
CUU - Magnetic resonance spectroscopy
3
DNA - Computer networks, local area networks
3
EPK - Nuclear energy
3
FLB - Quantum liquids, quantum crystals
3
FNE - Liquid crystals
3
FNKD - Plastics - mechanical properties
3
HBC - Physiological chemistry, biochemistry
3
HCR - Imaging techniques in medicine
3
HDE - Neurology - general aspects
3
HPK - Special pharmacology, drug design
3
LMH - Biophysics - methods
3
MNLA - Computational methods in mathematics
3
MSF - Mathematical methods in engineering
3
MWF - Programming, optimization, control theory
3
PKK - Theory of fields and particles - general
3
TEJ - Electric devices, mechanical devices, magnets, dielectrics
3
TGN - Control engineering
3
YBB - Law - general
3
more ...