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doi.org
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"Light Curve". Hipparcos ESA. ESA. 3 Aralık 2022 tarihinde kaynağından arşivlendi. Erişim tarihi: 17 Şubat 2022.
harvard.edu
adsabs.harvard.edu
Wallerstein, George (2002). "The Cepheids of Population II and Related Stars". The Publications of the Astronomical Society of the Pacific. 114 (797). ss. 689-699. Bibcode:2002PASP..114..689W. doi:10.1086/341698.
Soszyński, I.; Udalski, A.; Szymański, M. K.; Kubiak, M.; Pietrzyński, G.; Wyrzykowski, Ł.; Szewczyk, O.; Ulaczyk, K.; Poleski, R. (2008). "The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. II.Type II Cepheids and Anomalous Cepheids in the Large Magellanic Cloud". Acta Astronomica. Cilt 58. s. 293. arXiv:0811.3636 $2. Bibcode:2008AcA....58..293S.
McNamara, D. H.; Pyne, M. D. (1994). "A Photometric Study of XX Virginis and V716 Ophiuchi". Publications of the Astronomical Society of the Pacific. Cilt 106. s. 472. Bibcode:1994PASP..106..472M. doi:10.1086/133402.
"General Catalogue of Variable Stars". GCVS. Institute of Astronomy of Russian Academy of Sciences and Sternberg State Astronomical Institute. 4 Mart 2016 tarihinde kaynağından arşivlendi. Erişim tarihi: 31 Mayıs 2013.
web.archive.org
"Light Curve". Hipparcos ESA. ESA. 3 Aralık 2022 tarihinde kaynağından arşivlendi. Erişim tarihi: 17 Şubat 2022.
"General Catalogue of Variable Stars". GCVS. Institute of Astronomy of Russian Academy of Sciences and Sternberg State Astronomical Institute. 4 Mart 2016 tarihinde kaynağından arşivlendi. Erişim tarihi: 31 Mayıs 2013.