Classification
519 - Probabilities & applied mathematics
479
510 - Mathematics
280
500 - Natural sciences & mathematics
38
330 - Economics
37
658 - General management
29
005 - Computer programming, programs & data
15
620 - Engineering & allied operations
12
332 - Financial economics
10
006 - Special computer methods
9
745 - Decorative arts
9
331 - Labor economics
7
338 - Production
6
511 - General principles of mathematics
6
621 - Applied physics
6
001 - Knowledge
5
150 - Psychology
5
515 - Analysis
5
384 - Communications; telecommunication
4
530 - Physics
4
572 - Biochemistry
4
650 - Management & auxiliary services
4
153 - Mental processes & intelligence
3
304 - Factors affecting social behavior
3
368 - Insurance
3
610 - Medicine & health
3
613 - Personal health & safety
3
614 - Incidence & prevention of disease
3
300 - Social sciences
2
361 - Social problems & social welfare in general
2
501 - Philosophy & theory
2
518 - Numerical analysis
2
550 - Earth sciences
2
570 - Life sciences; biology
2
571 - Physiology & related subjects
2
577 - Ecology
2
616 - Diseases
2
629 - Other branches of engineering
2
004 - Data processing & computer science
1
302 - Social interaction
1
374 - Adult education
1
381 - Commerce
1
388 - Transportation; ground transportation
1
512 - Algebra
1
520 - Astronomy & allied sciences
1
532 - Fluid mechanics; liquid mechanics
1
535 - Light & infrared & ultraviolet phenomena
1
537 - Electricity & electronics
1
539 - Modern physics
1
540 - Chemistry & allied sciences
1
576 - Genetics & evolution
1
more ...