Abell 39 (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Abell 39" in Portuguese language version.

refsWebsite

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low place

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1daviddarling.info

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92^nd place

1web.archive.org

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9,982^nd place

aas.org

G. Jacoby, G. J. Ferland, K. T. Korista (2001). «Abell 39 -- A Benchmark Planetary Nebula For Numerical Modeling». AAS. 197 (Session 6. Planetary Nebulae: Young and Old). Consultado em 27 de fevereiro de 2008. Arquivado do original em 26 de fevereiro de 2005

daviddarling.info

Abell 39. The internet Encyclopedia of Science

nasa.gov

apod.nasa.gov

Spherical Planetary Nebula Abell 39. APOD (NASA)

noao.edu

Planetary nebula Abell 39. NOAO Image Gallery

web.archive.org

G. Jacoby, G. J. Ferland, K. T. Korista (2001). «Abell 39 -- A Benchmark Planetary Nebula For Numerical Modeling». AAS. 197 (Session 6. Planetary Nebulae: Young and Old). Consultado em 27 de fevereiro de 2008. Arquivado do original em 26 de fevereiro de 2005