Classification
006 - Special computer methods
003 - Systems
89
510 - Mathematics
50
535 - Light & infrared & ultraviolet phenomena
22
500 - Natural sciences & mathematics
21
519 - Probabilities & applied mathematics
20
620 - Engineering & allied operations
13
331 - Labor economics
12
658 - General management
9
330 - Economics
6
530 - Physics
6
302 - Social interaction
4
745 - Decorative arts
3
001 - Knowledge
2
153 - Mental processes & intelligence
2
332 - Financial economics
2
770 - Photography, photographs & computer art
2
381 - Commerce
1
629 - Other branches of engineering
1