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Subject (Genre)
- Periodicals103
- Congresses84
- Electronic books50
- Conference papers and proceedings30
- Handbooks, manuals, etc29
- Biography22
- Tables15
- Problems, exercises, etc11
- Handbooks and manuals10
- Textbooks8
- Dictionaries7
- Periodical7
- Internet resources5
- Problems and exercises5
- Bibliography4
- Computer network resources4
- Patents4
- Correspondence3
- Directories3
- Electronic book3