Classification
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337 - International economics
1
338 - Production
287
339 - Macroeconomics & related topics
3
340 - Law
19
342 - Constitutional & administrative law
6
343 - Military, tax, trade & industrial law
21
344 - Labor, social, education & cultural law
1
345 - Criminal law
5
346 - Private law
12
347 - Civil procedure & courts
8
350 - Public administration & military science
2
351 - Public administration
5
352 - General considerations of public administration
4
355 - Military science
2
361 - Social problems & social welfare in general
9
362 - Social welfare problems & services
3
363 - Other social problems & services
119
364 - Criminology
27
368 - Insurance
10
370 - Education
23
371 - Schools & their activities; special education
15
372 - Elementary education
2
374 - Adult education
980
378 - Higher education
2
380 - Commerce, communications & transportation
187
381 - Commerce
706
382 - International commerce
1
384 - Communications; telecommunication
429
387 - Water, air & space transportation
1
388 - Transportation; ground transportation
1
389 - Metrology & standardization
1
398 - Folklore
1
400 - Language
16
410 - Linguistics
14
414 - Phonology & phonetics
45
418 - Standard usage & applied linguistics
1
435 - German grammar
1
500 - Natural sciences & mathematics
1,216
502 - Miscellany
11
509 - Historical, geographic & persons treatment
4
510 - Mathematics
63
511 - General principles of mathematics
20
512 - Algebra
3
514 - Topology
1
515 - Analysis
27
516 - Geometry
3
518 - Numerical analysis
46
519 - Probabilities & applied mathematics
99
520 - Astronomy & allied sciences
14
523 - Specific celestial bodies & phenomena
5
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