Classification
TEA - Electrical engineering - general
227
TAT - Engineering Standards
39
TEDF - Electric power application
31
TBA - Electronic engineering - general
30
TEB - Electrical engineering - theory
22
YFF - Industrial safety regulations
14
TAA - Engineering sciences - reference books
12
TBB - Electronics - theory
9
TED - Electric power - industrial aspect
9
THA - Mechanical engineering - general
8
TCA - Communication science - general
6
TEJ - Electric devices, mechanical devices, magnets, dielectrics
6
TGBE - Electric and electronic measurement
5
THH - Machines
5
TKB - Civil engineering - buildings
5
TEF - Electric machines, electric cables
4
EVA - Energy demand, energy supply - comprehensive works
3
EVN - Energy supply - future aspects
3
TBC - Electronic circuits
3
TEDD - Electric power transmission
3
TEK - Electric experiments, reliability and technology
3
UKH - Environment and power plants, industrial plants
3
AQSP - Catalogues of individual libraries - monographs
2
ATCB - Classification systems
2
EIP - Photovoltaics
2
EIS - Solar cells
2
MSF - Mathematical methods in engineering
2
TAB - Engineering sciences - dictionaries
2
TBH - Power electronics, rectifiers, thyristors
2
TCL - High frequency engineering
2
TCLD - Electromagnetic compatibility, pulse technique
2
TGH - Technical optics
2
TGN - Control engineering
2
THD - Design and construction in mechanical engineering
2
THHD - Machine parts
2
THQH - Hydraulics
2
TIF - Industrial ( occupational ) safety
2
TIG - Reliability, safety, quality control
2
YDS - Building law
2
ALE - Biographies of scientists and Nobel prize winners - individual
1
ATAC - Information and documentation - reference works
1
ATDB - Particular thesaurus systems
1
CLJ - Catalyst materials
1
CNJ - Electrochemistry - comprehensive works
1
CXX - Hydrogen production - chemistry and technology
1
DHA - Computer equipment and periphery
1
DKAL - Linux - operating system
1
DMAD - Parallel programming
1
DMC - Computer programs
1
DYK - Image processing
1
more ...