Classification
658 - General management
747
660 - Chemical engineering
500
670 - Manufacturing
383
338 - Production
211
003 - Systems
196
620 - Engineering & allied operations
158
621 - Applied physics
138
629 - Other branches of engineering
132
624 - Civil engineering
85
616 - Diseases
81
541 - Physical chemistry
77
519 - Probabilities & applied mathematics
67
332 - Financial economics
64
677 - Textiles
63
004 - Data processing & computer science
53
363 - Other social problems & services
53
330 - Economics
43
690 - Buildings
43
005 - Computer programming, programs & data
41
333 - Economics of land & energy
36
515 - Analysis
34
006 - Special computer methods
33
650 - Management & auxiliary services
33
158 - Applied psychology
31
531 - Classical mechanics; solid mechanics
28
320 - Political science
27
547 - Organic chemistry
27
536 - Heat
25
530 - Physics
24
543 - Analytical chemistry
20
641 - Food & drink
19
664 - Food technology
19
628 - Sanitary & municipal engineering
18
381 - Commerce
16
610 - Medicine & health
15
518 - Numerical analysis
14
572 - Biochemistry
13
551 - Geology, hydrology & meteorology
11
546 - Inorganic chemistry
10
327 - International relations
9
336 - Public finance
8
337 - International economics
8
346 - Private law
8
512 - Algebra
8
577 - Ecology
7
579 - Microorganisms, fungi & algae
7
613 - Personal health & safety
7
617 - Surgery & related medical specialties
7
657 - Accounting
7
370 - Education
6
more ...