Classification
530 - Physics
88
620 - Engineering & allied operations
22
539 - Modern physics
20
518 - Numerical analysis
15
515 - Analysis
14
531 - Classical mechanics; solid mechanics
14
519 - Probabilities & applied mathematics
9
534 - Sound & related vibrations
8
004 - Data processing & computer science
7
523 - Specific celestial bodies & phenomena
5
512 - Algebra
4
532 - Fluid mechanics; liquid mechanics
4
533 - Gas mechanics
4
571 - Physiology & related subjects
4
516 - Geometry
3
520 - Astronomy & allied sciences
3
550 - Earth sciences
3
005 - Computer programming, programs & data
2
006 - Special computer methods
2
548 - Crystallography
2
621 - Applied physics
2
629 - Other branches of engineering
2
003 - Systems
1
514 - Topology
1
526 - Mathematical geography
1
535 - Light & infrared & ultraviolet phenomena
1
537 - Electricity & electronics
1
551 - Geology, hydrology & meteorology
1
614 - Incidence & prevention of disease
1
624 - Civil engineering
1
627 - Hydraulic engineering
1
628 - Sanitary & municipal engineering
1
660 - Chemical engineering
1
670 - Manufacturing
1
691 - Building materials
1
693 - Specific materials & purposes
1