NGC 39 (Czech Wikipedia)

Analysis of information sources in references of the Wikipedia article "NGC 39" in Czech language version.

refsWebsite

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

Margaret Geller, Michael J. Kurtz, John Huchra: The Updated Zwicky Catalog (UZC). In: Publications of the Astronomical Society of the Pacific. duben 1999. DOI 10.1086/316343.
Thomas H. Jarrett, John M. Carpenter, John E. Gizis, Carol Lonsdaleová, John Huchra, Thomas Jay Chester, David G. Monet: The Two Micron All Sky Survey (2MASS). In: The Astronomical Journal. únor 2006. DOI 10.1086/498708.