Classification
511 - General principles of mathematics
497
004 - Data processing & computer science
147
005 - Computer programming, programs & data
116
160 - Logic
102
006 - Special computer methods
91
510 - Mathematics
70
512 - Algebra
47
515 - Analysis
31
501 - Philosophy & theory
28
519 - Probabilities & applied mathematics
17
003 - Systems
13
658 - General management
13
530 - Physics
12
120 - Epistemology, causation & humankind
10
514 - Topology
10
516 - Geometry
10
100 - Philosophy & psychology
5
621 - Applied physics
5
330 - Economics
4
518 - Numerical analysis
4
620 - Engineering & allied operations
4
025 - Library operations
2
410 - Linguistics
2
500 - Natural sciences & mathematics
2
520 - Astronomy & allied sciences
2
539 - Modern physics
2
541 - Physical chemistry
2
570 - Life sciences; biology
2
629 - Other branches of engineering
2
900 - History & geography
2
128 - Humankind
1
142 - Critical philosophy
1
149 - Other philosophical systems
1
150 - Psychology
1
170 - Ethics
1
180 - Ancient, medieval & eastern philosophy
1
301 - Sociology & anthropology
1
370 - Education
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
616 - Diseases
1
650 - Management & auxiliary services
1
910 - Geography & travel
1