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NGC 7540 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 7540" in Polish language version.

refsWebsite
Global rank Polish rank
1seds.org
5,388th place
2,254th place
1u-strasbg.fr
1,342nd place
566th place
1cseligman.com
low place
2,148th place

cseligman.com

  • Courtney Seligman: NGC 7540. Celestial Atlas. [dostęp 2017-05-09]. (ang.).

seds.org

spider.seds.org

  • NGC 7540 w serwisie SEDS.org (Revised NGC and IC Catalog) (ang.)

u-strasbg.fr

simbad.u-strasbg.fr