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H-alfa (Catalan Wikipedia)

Analysis of information sources in references of the Wikipedia article "H-alfa" in Catalan language version.

refsWebsite
Global rank Catalan rank
1astro-tom.com
low place
low place
1web.archive.org
1st place
1st place
1olympusmicro.com
low place
low place

astro-tom.com

  • «Filters». Astro-Tom.com. [Consulta: 9 desembre 2006].

olympusmicro.com

  • D. B. Murphy, K. R. Spring, M. J. Parry-Hill, I. D. Johnson, M. W. Davidson. «Interference Filters». Olympus. Arxivat de l'original el 2017-10-02. [Consulta: 9 desembre 2006].

web.archive.org

  • D. B. Murphy, K. R. Spring, M. J. Parry-Hill, I. D. Johnson, M. W. Davidson. «Interference Filters». Olympus. Arxivat de l'original el 2017-10-02. [Consulta: 9 desembre 2006].