Classification
530 - Physics
14
539 - Modern physics
13
500 - Natural sciences & mathematics
4
571 - Physiology & related subjects
4
006 - Special computer methods
3
515 - Analysis
3
541 - Physical chemistry
3
536 - Heat
2
621 - Applied physics
2
001 - Knowledge
1
003 - Systems
1
300 - Social sciences
1
510 - Mathematics
1
535 - Light & infrared & ultraviolet phenomena
1
572 - Biochemistry
1
620 - Engineering & allied operations
1
629 - Other branches of engineering
1