Classification
621 - Applied physics
170
004 - Data processing & computer science
66
006 - Special computer methods
33
005 - Computer programming, programs & data
11
629 - Other branches of engineering
5
384 - Communications; telecommunication
2
523 - Specific celestial bodies & phenomena
2
535 - Light & infrared & ultraviolet phenomena
2
610 - Medicine & health
2
040 - [Unassigned]
1
323 - Civil & political rights
1
330 - Economics
1
333 - Economics of land & energy
1
338 - Production
1
515 - Analysis
1
551 - Geology, hydrology & meteorology
1
620 - Engineering & allied operations
1
624 - Civil engineering
1
658 - General management
1
720 - Architecture
1