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NGC 4009 (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 4009" in Polish language version.

refsWebsite
Global rank Polish rank
1haroldcorwin.net
low place
low place
1cseligman.com
low place
2,148th place
1u-strasbg.fr
1,342nd place
566th place

cseligman.com

  • Courtney Seligman: NGC 4009. Celestial Atlas. [dostęp 2014-10-10]. (ang.).

haroldcorwin.net

  • Harold G. Corwin Jr.: NGC 4009. [w:] Notes on the NGC objects, particularly those missing, misidentified, or otherwise unusual [on-line]. 2017-06-20. [dostęp 2017-11-05]. (ang.).

u-strasbg.fr

simbad.u-strasbg.fr