Classification
180 - Ancient, medieval & eastern philosophy
18
300 - Social sciences
9
501 - Philosophy & theory
9
190 - Modern western philosophy
8
142 - Critical philosophy
7
516 - Geometry
7
160 - Logic
5
128 - Humankind
4
340 - Law
4
510 - Mathematics
4
900 - History & geography
4
001 - Knowledge
3
110 - Metaphysics
3
111 - Ontology
3
519 - Probabilities & applied mathematics
3
530 - Physics
3
616 - Diseases
3
100 - Philosophy & psychology
2
126 - The self
2
210 - Philosophy & theory of religion
2
370 - Education
2
515 - Analysis
2
570 - Life sciences; biology
2
610 - Medicine & health
2
650 - Management & auxiliary services
2
658 - General management
2
004 - Data processing & computer science
1
006 - Special computer methods
1
050 - General serial publications
1
109 - Historical & collected persons treatment
1
120 - Epistemology, causation & humankind
1
200 - Religion
1
301 - Sociology & anthropology
1
302 - Social interaction
1
306 - Culture & institutions
1
320 - Political science
1
330 - Economics
1
339 - Macroeconomics & related topics
1
342 - Constitutional & administrative law
1
417 - Dialectology & historical linguistics
1
500 - Natural sciences & mathematics
1
511 - General principles of mathematics
1
520 - Astronomy & allied sciences
1
540 - Chemistry & allied sciences
1
546 - Inorganic chemistry
1
572 - Biochemistry
1
618 - Gynecology, obstetrics, pediatrics & geriatrics
1
620 - Engineering & allied operations
1
629 - Other branches of engineering
1
700 - The arts; fine & decorative arts
1
more ...