Classification
620 - Engineering & allied operations
167
621 - Applied physics
156
530 - Physics
73
539 - Modern physics
24
006 - Special computer methods
22
537 - Electricity & electronics
22
541 - Physical chemistry
19
062 - Organizations in British Isles; in England
18
001 - Knowledge
16
300 - Social sciences
16
500 - Natural sciences & mathematics
12
660 - Chemical engineering
11
546 - Inorganic chemistry
10
548 - Crystallography
10
670 - Manufacturing
10
535 - Light & infrared & ultraviolet phenomena
9
571 - Physiology & related subjects
9
572 - Biochemistry
9
629 - Other branches of engineering
9
004 - Data processing & computer science
8
520 - Astronomy & allied sciences
7
531 - Classical mechanics; solid mechanics
6
538 - Magnetism
6
543 - Analytical chemistry
6
547 - Organic chemistry
6
540 - Chemistry & allied sciences
5
005 - Computer programming, programs & data
4
549 - Mineralogy
4
550 - Earth sciences
4
610 - Medicine & health
4
617 - Surgery & related medical specialties
4
630 - Agriculture & related technologies
4
681 - Precision instruments & other devices
4
003 - Systems
3
333 - Economics of land & energy
3
384 - Communications; telecommunication
3
519 - Probabilities & applied mathematics
3
577 - Ecology
3
611 - Human anatomy, cytology & histology
3
000 - Computer science, information & general works
2
302 - Social interaction
2
331 - Labor economics
2
510 - Mathematics
2
515 - Analysis
2
600 - Technology
2
612 - Human physiology
2
616 - Diseases
2
658 - General management
2
745 - Decorative arts
2
063 - Organizations in central Europe; in Germany
1
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