Classification
004 - Data processing & computer science
90
511 - General principles of mathematics
65
005 - Computer programming, programs & data
49
006 - Special computer methods
26
160 - Logic
17
510 - Mathematics
13
501 - Philosophy & theory
12
512 - Algebra
7
515 - Analysis
7
518 - Numerical analysis
7
519 - Probabilities & applied mathematics
7
003 - Systems
6
621 - Applied physics
6
330 - Economics
5
530 - Physics
5
620 - Engineering & allied operations
5
516 - Geometry
4
100 - Philosophy & psychology
3
658 - General management
3
153 - Mental processes & intelligence
2
500 - Natural sciences & mathematics
2
541 - Physical chemistry
2
600 - Technology
2
900 - History & geography
2
000 - Computer science, information & general works
1
001 - Knowledge
1
142 - Critical philosophy
1
331 - Labor economics
1
509 - Historical, geographic & persons treatment
1
514 - Topology
1
523 - Specific celestial bodies & phenomena
1
531 - Classical mechanics; solid mechanics
1
536 - Heat
1
539 - Modern physics
1
629 - Other branches of engineering
1
910 - Geography & travel
1