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NGC 561 (Czech Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 561" in Czech language version.

Last modified:

Ref.Un. Ref.Website
Global rank Czech rank
11web.archive.org
1st place
1st place
11cseligman.com
1,720th place
1,343rd place

cseligman.com (Global: 1,720th place; Czech: 1,343rd place)

  • SELIGMAN, Courtney. Celestial Atlas: NGC 561 [online]. [cit. 2019-11-28]. Dostupné online. (anglicky)

web.archive.org (Global: 1st place; Czech: 1st place)

  • FROMMERT, Hartmut. Revised NGC Data for NGC 561 [online]. SEDS.org [cit. 2019-11-28]. Dostupné v archivu pořízeném dne 2013-10-06. (anglicky)