Classification
005 - Computer programming, programs & data
55
004 - Data processing & computer science
34
621 - Applied physics
10
658 - General management
5
000 - Computer science, information & general works
3
006 - Special computer methods
3
003 - Systems
2
330 - Economics
2
338 - Production
2
500 - Natural sciences & mathematics
2
519 - Probabilities & applied mathematics
2
650 - Management & auxiliary services
2
025 - Library operations
1
300 - Social sciences
1
302 - Social interaction
1
333 - Economics of land & energy
1
371 - Schools & their activities; special education
1
502 - Miscellany
1
670 - Manufacturing
1