Classification
530 - Physics
67
620 - Engineering & allied operations
18
539 - Modern physics
16
518 - Numerical analysis
11
531 - Classical mechanics; solid mechanics
10
515 - Analysis
9
534 - Sound & related vibrations
8
519 - Probabilities & applied mathematics
7
004 - Data processing & computer science
6
523 - Specific celestial bodies & phenomena
5
571 - Physiology & related subjects
4
512 - Algebra
3
516 - Geometry
3
532 - Fluid mechanics; liquid mechanics
3
533 - Gas mechanics
3
548 - Crystallography
2
629 - Other branches of engineering
2
006 - Special computer methods
1
514 - Topology
1
535 - Light & infrared & ultraviolet phenomena
1
537 - Electricity & electronics
1
550 - Earth sciences
1
551 - Geology, hydrology & meteorology
1
621 - Applied physics
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