Classification
519 - Probabilities & applied mathematics
438
620 - Engineering & allied operations
218
629 - Other branches of engineering
113
515 - Analysis
72
621 - Applied physics
67
003 - Systems
49
518 - Numerical analysis
43
531 - Classical mechanics; solid mechanics
38
658 - General management
33
530 - Physics
31
006 - Special computer methods
29
005 - Computer programming, programs & data
26
004 - Data processing & computer science
24
512 - Algebra
19
330 - Economics
16
541 - Physical chemistry
15
510 - Mathematics
14
624 - Civil engineering
13
511 - General principles of mathematics
9
690 - Buildings
9
660 - Chemical engineering
6
670 - Manufacturing
6
516 - Geometry
5
550 - Earth sciences
4
551 - Geology, hydrology & meteorology
4
610 - Medicine & health
4
536 - Heat
3
570 - Life sciences; biology
3
532 - Fluid mechanics; liquid mechanics
2
533 - Gas mechanics
2
535 - Light & infrared & ultraviolet phenomena
2
537 - Electricity & electronics
2
615 - Pharmacology & therapeutics
2
616 - Diseases
2
910 - Geography & travel
2
001 - Knowledge
1
300 - Social sciences
1
363 - Other social problems & services
1
370 - Education
1
381 - Commerce
1
500 - Natural sciences & mathematics
1
514 - Topology
1
520 - Astronomy & allied sciences
1
526 - Mathematical geography
1
539 - Modern physics
1
542 - Techniques, equipment & materials
1
543 - Analytical chemistry
1
580 - Plants (Botany)
1
612 - Human physiology
1
617 - Surgery & related medical specialties
1
more ...