Classification
621 - Applied physics
145
004 - Data processing & computer science
39
006 - Special computer methods
10
005 - Computer programming, programs & data
9
384 - Communications; telecommunication
7
610 - Medicine & health
4
003 - Systems
1
534 - Sound & related vibrations
1
543 - Analytical chemistry
1
570 - Life sciences; biology
1
620 - Engineering & allied operations
1
629 - Other branches of engineering
1