Classification
518 - Numerical analysis
113
004 - Data processing & computer science
69
515 - Analysis
60
519 - Probabilities & applied mathematics
45
005 - Computer programming, programs & data
28
620 - Engineering & allied operations
20
003 - Systems
19
512 - Algebra
18
621 - Applied physics
14
511 - General principles of mathematics
13
530 - Physics
13
006 - Special computer methods
8
330 - Economics
5
531 - Classical mechanics; solid mechanics
5
516 - Geometry
4
658 - General management
4
523 - Specific celestial bodies & phenomena
3
551 - Geology, hydrology & meteorology
3
510 - Mathematics
2
514 - Topology
2
520 - Astronomy & allied sciences
2
624 - Civil engineering
2
629 - Other branches of engineering
2
670 - Manufacturing
2
300 - Social sciences
1
303 - Social processes
1
333 - Economics of land & energy
1
371 - Schools & their activities; special education
1
501 - Philosophy & theory
1
535 - Light & infrared & ultraviolet phenomena
1
537 - Electricity & electronics
1
539 - Modern physics
1
543 - Analytical chemistry
1
550 - Earth sciences
1
570 - Life sciences; biology
1
571 - Physiology & related subjects
1