Classification
LHZ - Viruses
17
HBM - Medical microbiology, infectious diseases
15
CAA - Chemistry - reference books
6
CBRE - Complex compounds
6
CHV - Physico - chemical equilibria
6
CT - Chemical methods of materials analysis
3
CR - Nuclear chemistry, radiation chemistry
2
FHEH - Ion microscopy
2
HCN - Nuclear medicine
2
TGH - Technical optics
2
AFW - Subject oriented organizations
1
CAU - Laboratory and safety engineering in chemistry
1
CET - Special organic compounds - synthesis and reactions
1
CHX - Chemical thermodynamics
1
CLA - Reaction kinetics
1
CLAF - Gas phase reactions
1
CMA - Photochemistry - comprehensive works
1
CTT - Liquid chromatography
1
CUEC - Flame spectroscopy
1
CWG - Principles of chemical engineering
1
CWGE - Chemical plants - planning, construction, operation
1
CWOC - Characterization and size measurement of particles
1
CX - Fossil fuel technology, special chemicals technology
1
DMC - Computer programs
1
DOI - Programming language - FORTRAN
1
DPA - Electronic data processing - applications
1
DWA - Database systems
1
ELA - Geothermal energy
1
EUU - Cogeneration
1
EXA - Energy policy
1
FAF - Materials research - comprehensive works
1
FMB - Physical metallurgy - general aspects
1
FNN - Ceramics - general aspects
1
GBAK - Paleontology
1
GBED - Glaciology
1
GNA - Geology - soil sciences
1
GRB - Climatology
1
GUAA - Geography - physical
1
GXA - Polar research - general
1
HBC - Physiological chemistry, biochemistry
1
HBG - Molecular biology in medicine, human genetics
1
HCR - Imaging techniques in medicine
1
LCK - Ecology - general aspects
1
LEK - Botany - systematics, taxonomy
1
LEL - Botany - lower plants
1
LEN - Plant physiology
1
LGR - Animal physiology
1
LHH - Microbiology - methods
1
LHM - Microbiology - genetics
1
LKNE - Amino acids - biochemistry
1
more ...