Classification
153 - Mental processes & intelligence
330 - Economics
2
658 - General management
2
000 - Computer science, information & general works
1
300 - Social sciences
1
302 - Social interaction
1
338 - Production
1
500 - Natural sciences & mathematics
1
510 - Mathematics
1
519 - Probabilities & applied mathematics
1
650 - Management & auxiliary services
1
670 - Manufacturing
1