NGC 6818 (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 6818" in Spanish language version.

refsWebsite

Global rank Spanish rank

1hubblesite.org

6,632^nd place

4,965^th place

230^th place

247^th place

hubblesite.org

Hubble Captures the Shrouds of Dying Stars. Hubblesite

uchicago.edu

journals.uchicago.edu

Hyung, S., Aller, L.H. & Feibelman, W.A. (1999). «Spectroscopic Observations of the Planetary Nebula NGC 6818». The Astrophysical Journal 514 (2). pp. 878-894.