Classification
511 - General principles of mathematics
431
004 - Data processing & computer science
127
160 - Logic
106
005 - Computer programming, programs & data
94
006 - Special computer methods
91
512 - Algebra
47
510 - Mathematics
45
501 - Philosophy & theory
32
515 - Analysis
30
530 - Physics
12
658 - General management
11
120 - Epistemology, causation & humankind
10
514 - Topology
10
003 - Systems
8
516 - Geometry
8
519 - Probabilities & applied mathematics
7
620 - Engineering & allied operations
7
621 - Applied physics
6
518 - Numerical analysis
5
100 - Philosophy & psychology
4
330 - Economics
4
570 - Life sciences; biology
3
025 - Library operations
2
541 - Physical chemistry
2
629 - Other branches of engineering
2
900 - History & geography
2
001 - Knowledge
1
109 - Historical & collected persons treatment
1
128 - Humankind
1
142 - Critical philosophy
1
146 - Naturalism & related systems
1
149 - Other philosophical systems
1
170 - Ethics
1
301 - Sociology & anthropology
1
410 - Linguistics
1
500 - Natural sciences & mathematics
1
520 - Astronomy & allied sciences
1
551 - Geology, hydrology & meteorology
1
576 - Genetics & evolution
1
616 - Diseases
1
650 - Management & auxiliary services
1
910 - Geography & travel
1