Kerri Malatesta (16 липня 2010). Delta Cephei. American Association of Variable Star Observers. Архів оригіналу за 6 вересня 2015. Процитовано 22 жовтня 2019.
Udalski, A.; Soszynski, I.; Szymanski, M.; Kubiak, M.; Pietrzynski, G.; Wozniak, P.; Zebrun, K. The Optical Gravitational Lensing Experiment. Cepheids in the Magellanic Clouds. IV. Catalog of Cepheids from the Large Magellanic Cloud // Acta Astronomica : journal. — 1999. — Vol. 49 (18 December). — P. 223—317. — arXiv:astro-ph/9908317. — Bibcode:1999AcA....49..223U.
Soszynski, I.; Poleski, R.; Udalski, A.; Szymanski, M. K.; Kubiak, M.; Pietrzynski, G.; Wyrzykowski, L.; Szewczyk, O.; Ulaczyk, K. The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. I. Classical Cepheids in the Large Magellanic Cloud // Acta Astronomica : journal. — 2008. — Vol. 58 (18 December). — P. 163. — arXiv:0808.2210. — Bibcode:2008AcA....58..163S.
Freedman, Wendy L.; Madore, Barry F.; Gibson, Brad K.; Ferrarese, Laura; Kelson, Daniel D.; Sakai, Shoko; Mould, Jeremy R.; Kennicutt, Jr., Robert C.; Ford, Holland C.; Graham, John A.; Huchra, John P.; Hughes, Shaun M. G.; Illingworth, Garth D.; Macri, Lucas M.; Stetson, Peter B. Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant // The Astrophysical Journal : journal. — IOP Publishing, 2001. — Vol. 553, no. 1 (18 December). — P. 47—72. — arXiv:astro-ph/0012376. — Bibcode:2001ApJ...553...47F. — DOI:10.1086/320638.
Benedict, G. Fritz; McArthur, Barbara E.; Feast, Michael W.; Barnes, Thomas G.; Harrison, Thomas E.; Patterson, Richard J.; Menzies, John W.; Bean, Jacob L.; Freedman, Wendy L. Hubble Space Telescope Fine Guidance Sensor Parallaxes of Galactic Cepheid Variable Stars: Period-Luminosity Relations // The Astronomical Journal : journal. — IOP Publishing, 2007. — Vol. 133, no. 4 (18 December). — P. 1810. — arXiv:astro-ph/0612465. — Bibcode:2007AJ....133.1810B. — DOI:10.1086/511980.
Benedict, G. Fritz; McArthur, B. E.; Fredrick, L. W.; Harrison, T. E.; Slesnick, C. L.; Rhee, J.; Patterson, R. J.; Skrutskie, M. F.; Franz, O. G.; Wasserman, L. H.; Jefferys, W. H.; Nelan, E.; Van Altena, W.; Shelus, P. J.; Hemenway, P. D.; Duncombe, R. L.; Story, D.; Whipple, A. L.; Bradley, A. J. Astrometry with the Hubble Space Telescope: A Parallax of the Fundamental Distance Calibrator δ Cephei // The Astronomical Journal : journal. — IOP Publishing, 2002. — Vol. 124, no. 3 (18 December). — P. 1695. — arXiv:astro-ph/0206214. — Bibcode:2002AJ....124.1695B. — DOI:10.1086/342014.
Majaess, Daniel; Turner, David; Moni Bidin, Christian; Mauro, Francesco; Geisler, Douglas; Gieren, Wolfgang; Minniti, Dante; Chené, André-Nicolas; Lucas, Philip; Borissova, Jura; Kurtev, Radostn; Dékány, Istvan; Saito, Roberto K. New Evidence Supporting Membership for TW Nor in Lyngå 6 and the Centaurus Spiral Arm // The Astrophysical Journal : journal. — IOP Publishing, 2011. — Vol. 741, no. 2 (18 December). — P. L27. — arXiv:1110.0830. — Bibcode:2011ApJ...741L..27M. — DOI:10.1088/2041-8205/741/2/L27.
Freedman, Wendy L.; Madore, Barry F.; Gibson, Brad K.; Ferrarese, Laura; Kelson, Daniel D.; Sakai, Shoko; Mould, Jeremy R.; Kennicutt, Jr., Robert C.; Ford, Holland C.; Graham, John A.; Huchra, John P.; Hughes, Shaun M. G.; Illingworth, Garth D.; Macri, Lucas M.; Stetson, Peter B. Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant // The Astrophysical Journal : journal. — IOP Publishing, 2001. — Vol. 553, no. 1 (18 December). — P. 47—72. — arXiv:astro-ph/0012376. — Bibcode:2001ApJ...553...47F. — DOI:10.1086/320638.
Sesar, Branimir; Fouesneau, Morgan; Price-Whelan, Adrian M.; Bailer-Jones, Coryn A. L.; Gould, Andy; Rix, Hans-Walter. A Probabilistic Approach to Fitting Period–luminosity Relations and ValidatingGaia Parallaxes // The Astrophysical Journal : journal. — IOP Publishing, 2017. — Vol. 838, no. 2 (18 December). — P. 107. — Bibcode:2017ApJ...838..107S. — DOI:10.3847/1538-4357/aa643b.
Benedict, G. Fritz; McArthur, Barbara E.; Feast, Michael W.; Barnes, Thomas G.; Harrison, Thomas E.; Patterson, Richard J.; Menzies, John W.; Bean, Jacob L.; Freedman, Wendy L. Hubble Space Telescope Fine Guidance Sensor Parallaxes of Galactic Cepheid Variable Stars: Period-Luminosity Relations // The Astronomical Journal : journal. — IOP Publishing, 2007. — Vol. 133, no. 4 (18 December). — P. 1810. — arXiv:astro-ph/0612465. — Bibcode:2007AJ....133.1810B. — DOI:10.1086/511980.
Benedict, G. Fritz; McArthur, B. E.; Fredrick, L. W.; Harrison, T. E.; Slesnick, C. L.; Rhee, J.; Patterson, R. J.; Skrutskie, M. F.; Franz, O. G.; Wasserman, L. H.; Jefferys, W. H.; Nelan, E.; Van Altena, W.; Shelus, P. J.; Hemenway, P. D.; Duncombe, R. L.; Story, D.; Whipple, A. L.; Bradley, A. J. Astrometry with the Hubble Space Telescope: A Parallax of the Fundamental Distance Calibrator δ Cephei // The Astronomical Journal : journal. — IOP Publishing, 2002. — Vol. 124, no. 3 (18 December). — P. 1695. — arXiv:astro-ph/0206214. — Bibcode:2002AJ....124.1695B. — DOI:10.1086/342014.
Majaess, Daniel; Turner, David; Moni Bidin, Christian; Mauro, Francesco; Geisler, Douglas; Gieren, Wolfgang; Minniti, Dante; Chené, André-Nicolas; Lucas, Philip; Borissova, Jura; Kurtev, Radostn; Dékány, Istvan; Saito, Roberto K. New Evidence Supporting Membership for TW Nor in Lyngå 6 and the Centaurus Spiral Arm // The Astrophysical Journal : journal. — IOP Publishing, 2011. — Vol. 741, no. 2 (18 December). — P. L27. — arXiv:1110.0830. — Bibcode:2011ApJ...741L..27M. — DOI:10.1088/2041-8205/741/2/L27.
Udalski, A.; Soszynski, I.; Szymanski, M.; Kubiak, M.; Pietrzynski, G.; Wozniak, P.; Zebrun, K. The Optical Gravitational Lensing Experiment. Cepheids in the Magellanic Clouds. IV. Catalog of Cepheids from the Large Magellanic Cloud // Acta Astronomica : journal. — 1999. — Vol. 49 (18 December). — P. 223—317. — arXiv:astro-ph/9908317. — Bibcode:1999AcA....49..223U.
Soszynski, I.; Poleski, R.; Udalski, A.; Szymanski, M. K.; Kubiak, M.; Pietrzynski, G.; Wyrzykowski, L.; Szewczyk, O.; Ulaczyk, K. The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. I. Classical Cepheids in the Large Magellanic Cloud // Acta Astronomica : journal. — 2008. — Vol. 58 (18 December). — P. 163. — arXiv:0808.2210. — Bibcode:2008AcA....58..163S.
Freedman, Wendy L.; Madore, Barry F.; Gibson, Brad K.; Ferrarese, Laura; Kelson, Daniel D.; Sakai, Shoko; Mould, Jeremy R.; Kennicutt, Jr., Robert C.; Ford, Holland C.; Graham, John A.; Huchra, John P.; Hughes, Shaun M. G.; Illingworth, Garth D.; Macri, Lucas M.; Stetson, Peter B. Final Results from the Hubble Space Telescope Key Project to Measure the Hubble Constant // The Astrophysical Journal : journal. — IOP Publishing, 2001. — Vol. 553, no. 1 (18 December). — P. 47—72. — arXiv:astro-ph/0012376. — Bibcode:2001ApJ...553...47F. — DOI:10.1086/320638.
Leavitt, Henrietta S.; Pickering, Edward C. Periods of 25 Variable Stars in the Small Magellanic Cloud // Harvard College Observatory Circular : journal. — 1912. — Vol. 173 (18 December). — P. 1—3. — Bibcode:1912HarCi.173....1L.
Leavitt, Henrietta S. 1777 variables in the Magellanic Clouds // Annals of Harvard College Observatory. — 1908. — Т. 60 (18 грудня). — С. 87—108. — Bibcode:1908AnHar..60...87L.
Benedict, G. Fritz; McArthur, Barbara E.; Feast, Michael W.; Barnes, Thomas G.; Harrison, Thomas E.; Patterson, Richard J.; Menzies, John W.; Bean, Jacob L.; Freedman, Wendy L. Hubble Space Telescope Fine Guidance Sensor Parallaxes of Galactic Cepheid Variable Stars: Period-Luminosity Relations // The Astronomical Journal : journal. — IOP Publishing, 2007. — Vol. 133, no. 4 (18 December). — P. 1810. — arXiv:astro-ph/0612465. — Bibcode:2007AJ....133.1810B. — DOI:10.1086/511980.
Benedict, G. Fritz; McArthur, B. E.; Fredrick, L. W.; Harrison, T. E.; Slesnick, C. L.; Rhee, J.; Patterson, R. J.; Skrutskie, M. F.; Franz, O. G.; Wasserman, L. H.; Jefferys, W. H.; Nelan, E.; Van Altena, W.; Shelus, P. J.; Hemenway, P. D.; Duncombe, R. L.; Story, D.; Whipple, A. L.; Bradley, A. J. Astrometry with the Hubble Space Telescope: A Parallax of the Fundamental Distance Calibrator δ Cephei // The Astronomical Journal : journal. — IOP Publishing, 2002. — Vol. 124, no. 3 (18 December). — P. 1695. — arXiv:astro-ph/0206214. — Bibcode:2002AJ....124.1695B. — DOI:10.1086/342014.
Majaess, Daniel; Turner, David; Moni Bidin, Christian; Mauro, Francesco; Geisler, Douglas; Gieren, Wolfgang; Minniti, Dante; Chené, André-Nicolas; Lucas, Philip; Borissova, Jura; Kurtev, Radostn; Dékány, Istvan; Saito, Roberto K. New Evidence Supporting Membership for TW Nor in Lyngå 6 and the Centaurus Spiral Arm // The Astrophysical Journal : journal. — IOP Publishing, 2011. — Vol. 741, no. 2 (18 December). — P. L27. — arXiv:1110.0830. — Bibcode:2011ApJ...741L..27M. — DOI:10.1088/2041-8205/741/2/L27.
Ventrudo, Brian (19 листопада 2009). Mile Markers to the Galaxies. One-Minute Astronomer. Архів оригіналу за 12 березня 2015. Процитовано 24 вересня 2019.
Kerri Malatesta (16 липня 2010). Delta Cephei. American Association of Variable Star Observers. Архів оригіналу за 6 вересня 2015. Процитовано 22 жовтня 2019.
Ventrudo, Brian (19 листопада 2009). Mile Markers to the Galaxies. One-Minute Astronomer. Архів оригіналу за 12 березня 2015. Процитовано 24 вересня 2019.