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Subject (Genre)
- Academic theses343
- Laboratory manuals124
- Periodicals116
- Tables47
- Problems, exercises, etc44
- Congresses39
- Biography29
- Bibliography28
- Nomenclature27
- Handbooks, manuals, etc23
- Educational films21
- Periodical21
- Textbooks20
- Electronic books17
- Short films15
- Dictionaries14
- Outlines, syllabi, etc10
- Databases9
- Internet videos9
- Terminology8