Classification
006 - Special computer methods
500 - Natural sciences & mathematics
20
003 - Systems
17
745 - Decorative arts
12
331 - Labor economics
11
658 - General management
10
330 - Economics
9
620 - Engineering & allied operations
9
530 - Physics
7
510 - Mathematics
6
519 - Probabilities & applied mathematics
5
153 - Mental processes & intelligence
4
384 - Communications; telecommunication
4
004 - Data processing & computer science
3
302 - Social interaction
3
381 - Commerce
2
621 - Applied physics
2
005 - Computer programming, programs & data
1
066 - Organizations in Iberian Peninsula & adjacent islands
1
300 - Social sciences
1
303 - Social processes
1
332 - Financial economics
1
338 - Production
1
535 - Light & infrared & ultraviolet phenomena
1
600 - Technology
1
629 - Other branches of engineering
1
670 - Manufacturing
1