RR Lyrae (Swedish Wikipedia)

Analysis of information sources in references of the Wikipedia article "RR Lyrae" in Swedish language version.

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aavso.org

”RR Lyr” (på engelska). The International Variable Star Index. AAVSO – American Association of Variable Star Observers. http://www.aavso.org/vsx/index.php?view=detail.top&oid=18050. Läst 1 oktober 2017.

Kolenberg, K.; Fossati, L.; Shulyak, D.; Pikall, H.; Barnes, T. G.; Kochukhov, O.; Tsymbal, V. (september 2010). ”An in-depth spectroscopic analysis of the Blazhko star RR Lyrae. I. Characterisation of the star: abundance analysis and fundamental parameters” (på engelska). Astronomy and Astrophysics 519: sid. A64. doi:10.1051/0004-6361/201014471.

Percy, John R. (2007) (på engelska). Understanding variable stars. Cambridge: Cambridge University Press. Libris 10463621. ISBN 978-0-521-23253-1 (hbk.)