Classification
621 - Applied physics
20
006 - Special computer methods
10
004 - Data processing & computer science
6
005 - Computer programming, programs & data
3
620 - Engineering & allied operations
3
617 - Surgery & related medical specialties
2
003 - Systems
1
306 - Culture & institutions
1
333 - Economics of land & energy
1
530 - Physics
1
551 - Geology, hydrology & meteorology
1
612 - Human physiology
1
613 - Personal health & safety
1
614 - Incidence & prevention of disease
1
624 - Civil engineering
1
629 - Other branches of engineering
1
691 - Building materials
1