The publication of works available at the following libraries:
- http://www.worldcat.org/
- http://searchworks.stanford.edu/
- VIAF: The Virtual International Authority File
- Deutche National Bibliothek
- International Standard Name Identifier
- The Library of Congress
- http://parlib.duma.gov.ru/
- http://ru.cyclopaedia.net/
- Library of the Moscow State Pedagogical University
- http://biblus.ru/
- http://lib.pmvt.ru/
- http://libcat.bas-net.by/
- Scientific Library of Odessa National University
- Scientific Library of the Omsk State University