Classification
512 - Algebra
9
515 - Analysis
9
500 - Natural sciences & mathematics
4
620 - Engineering & allied operations
4
519 - Probabilities & applied mathematics
3
520 - Astronomy & allied sciences
3
530 - Physics
3
616 - Diseases
3
004 - Data processing & computer science
2
005 - Computer programming, programs & data
2
006 - Special computer methods
2
514 - Topology
2
539 - Modern physics
2
560 - Paleontology; paleozoology
2
571 - Physiology & related subjects
2
615 - Pharmacology & therapeutics
2
150 - Psychology
1
330 - Economics
1
332 - Financial economics
1
551 - Geology, hydrology & meteorology
1
572 - Biochemistry
1
611 - Human anatomy, cytology & histology
1
612 - Human physiology
1