Classification
530 - Physics
24
541 - Physical chemistry
8
000 - Computer science, information & general works
3
005 - Computer programming, programs & data
3
006 - Special computer methods
3
003 - Systems
2
063 - Organizations in central Europe; in Germany
2
333 - Economics of land & energy
2
512 - Algebra
2
518 - Numerical analysis
2
540 - Chemistry & allied sciences
2
620 - Engineering & allied operations
2
621 - Applied physics
2
001 - Knowledge
1
004 - Data processing & computer science
1
300 - Social sciences
1
332 - Financial economics
1
515 - Analysis
1
516 - Geometry
1
531 - Classical mechanics; solid mechanics
1
535 - Light & infrared & ultraviolet phenomena
1
539 - Modern physics
1
542 - Techniques, equipment & materials
1
546 - Inorganic chemistry
1
571 - Physiology & related subjects
1
572 - Biochemistry
1
658 - General management
1
660 - Chemical engineering
1