Classification
600 - Technology
38,737
621 - Applied physics
6
620 - Engineering & allied operations
4
004 - Data processing & computer science
3
006 - Special computer methods
3
384 - Communications; telecommunication
3
001 - Knowledge
2
300 - Social sciences
2
331 - Labor economics
2
519 - Probabilities & applied mathematics
2
005 - Computer programming, programs & data
1
170 - Ethics
1
174 - Occupational ethics
1
330 - Economics
1
361 - Social problems & social welfare in general
1
515 - Analysis
1
523 - Specific celestial bodies & phenomena
1
572 - Biochemistry
1
745 - Decorative arts
1