Classification
005 - Computer programming, programs & data
787
040 - [Unassigned]
756
006 - Special computer methods
677
004 - Data processing & computer science
498
519 - Probabilities & applied mathematics
477
518 - Numerical analysis
430
003 - Systems
259
621 - Applied physics
165
511 - General principles of mathematics
149
510 - Mathematics
122
512 - Algebra
109
500 - Natural sciences & mathematics
89
515 - Analysis
82
332 - Financial economics
69
570 - Life sciences; biology
68
620 - Engineering & allied operations
63
330 - Economics
57
530 - Physics
51
658 - General management
50
300 - Social sciences
45
516 - Geometry
44
025 - Library operations
43
333 - Economics of land & energy
38
368 - Insurance
25
629 - Other branches of engineering
21
363 - Other social problems & services
19
551 - Geology, hydrology & meteorology
18
610 - Medicine & health
16
550 - Earth sciences
15
572 - Biochemistry
15
000 - Computer science, information & general works
13
910 - Geography & travel
13
336 - Public finance
12
339 - Macroeconomics & related topics
11
001 - Knowledge
10
501 - Philosophy & theory
9
514 - Topology
9
577 - Ecology
9
302 - Social interaction
8
370 - Education
8
507 - Education, research & related topics
8
160 - Logic
7
540 - Chemistry & allied sciences
7
670 - Manufacturing
6
304 - Factors affecting social behavior
5
520 - Astronomy & allied sciences
5
531 - Classical mechanics; solid mechanics
5
576 - Genetics & evolution
5
616 - Diseases
5
624 - Civil engineering
5
more ...