NGC 1981 (Czech Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 1981" in Czech language version.

Last modified:

Ref.Un. Ref.Website
Global rank Czech rank
14th place
63rd place
163rd place
436th place
49th place
162nd place
2nd place
4th place
1,720th place
1,343rd place
1st place
1st place

adsabs.harvard.edu (Global: 14th place; Czech: 63rd place)

adsabs.harvard.edu

articles.adsabs.harvard.edu

  • Per Collinder: On Structural Properties of Open Galactic Clusters and their Spatial Distribution. Catalog of Open Galactic Clusters. 1931. Dostupné online.

arxiv.org (Global: 49th place; Czech: 162nd place)

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

  • SELIGMAN, Courtney. Celestial Atlas: NGC 1981 (= OCl 525) [online]. [cit. 2017-11-29]. Dostupné online. (anglicky)

doi.org (Global: 2nd place; Czech: 4th place)

u-strasbg.fr (Global: 163rd place; Czech: 436th place)

simbad.u-strasbg.fr

  • SIMBAD Astronomical Database: Results for NGC 1981 [online]. [cit. 2017-11-29]. Dostupné online. (anglicky)

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

  • SEDS Messier Objects Database: Revised NGC Data for NGC 1981 [online]. [cit. 2017-11-29]. Dostupné v archivu pořízeném dne 2015-09-19. (anglicky)