Classification
ACA - Languages, dictionaries - general
1
ACE - Germanic languages, Indo-Germanic languages
2
ACH - Romance languages
2
AHF - Research and science
1
CR - Nuclear chemistry, radiation chemistry
2
CRCD - Nuclear reactions
1
CWE - Chemical engineering, chemical industry - general
4
CXX - Hydrogen production - chemistry and technology
1
DMAF - Object oriented programming
1
DMC - Computer programs
1
DOE - Programming language - BASIC, Turbo BASIC, Visual BASIC
1
DOFC - Programming language - C plus-plus
1
ECA - Energy resources
1
EEA - Coal - general
1
EFA - Petroleum, natural gas
1
EHA - Renewable energy sources
2
EPK - Nuclear energy
7
ESB - Hydrogen energy
3
ETA - Energy storage
1
ETC - Energy conversion
2
EUA - Energy conservation - general
2
EUD - Energy consumption
1
EVA - Energy demand, energy supply - comprehensive works
2
EVB - Energy supply of Germany
1
EVN - Energy supply - future aspects
1
EVP - Energy models, energy system analysis
3
EWA - Energy economy
15
EXA - Energy policy
10
FNK - Plastics - application, engineering aspects
1
GAN - Geosciences - mathematical methods, computer applications
1
GDA - Engineering geology - general
6
GRB - Climatology
1
GRBN - Climatological models
1
GTA - Hydrology - general
3
GTAP - Hydrological investigation methods
1
HRR - X-ray diagnostics, computer tomography
1
MNB - Numerical algebra
1
MNE - Interpolations and approximations
1
MNLA - Computational methods in mathematics
1
MSA - Mathematical methods - general
1
MWHD - Statistical tests
1
MWHG - Reliability theory
1
TAA - Engineering sciences - reference books
3
TED - Electric power - industrial aspect
1
TIA - Industrial engineering - general
1
TIG - Reliability, safety, quality control
2
TNB - Nuclear power plants
1
TNC - Nuclear reactor types - general
1
TNG - Breeder reactors
1
TNH - Research reactors
1
more ...