(en) V. V. Kovtyukh, S. M. Andrievsky, S. I. Belik et R. E. Luck, « Phase-dependent Variation of the Fundamental Parameters of Cepheids. II. Periods Longer than 10 Days », The Astronomical Journal, vol. 129, , p. 433 (DOI10.1086/426339, Bibcode2005AJ....129..433K)
(en) M. Imbert, « Détermination des rayons de Céphéides. V. Vitesses radiales et dimensions de 22 Céphéides galactiques. Determination of the radii of Cepheids V. Radial velocities and dimensions of 22 galactic Cepheids », Astronomy and Astrophysics Supplement, vol. 140, , p. 79 (DOI10.1051/aas:1999515, Bibcode1999A&AS..140...79I)
(en) R. E. Luck, S. M. Andrievsky, A. Fokin et V. V. Kovtyukh, « Phase-Dependent Variation of the Fundamental Parameters of Cepheids. Iv. S-CEPHEIDS », The Astronomical Journal, vol. 136, , p. 98 (DOI10.1088/0004-6256/136/1/98, Bibcode2008AJ....136...98L)
(en) N. N. Samus, O. V. Durlevichet al., « VizieR Online Data Catalog: General Catalogue of Variable Stars (Samus+ 2007-2013) », VizieR On-line Data Catalog: B/gcvs. Originally published in: 2009yCat....102025S, vol. 1, (Bibcode2009yCat....102025S)
(en) N. Houk et C. Swift, « Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5 », Michigan Spectral Survey, vol. 05, , p. 0 (Bibcode1999MSS...C05....0H)
(en) L. N. Berdnikov, « VizieR Online Data Catalog: Photoelectric observations of Cepheids in UBV(RI)c (Berdnikov, 2008) », VizieR On-line Data Catalog: II/285. Originally published in: 2008yCat.2285....0B, vol. 2285, (Bibcode2008yCat.2285....0B)
(en) V. V. Kovtyukh, S. M. Andrievsky, S. I. Belik et R. E. Luck, « Phase-dependent Variation of the Fundamental Parameters of Cepheids. II. Periods Longer than 10 Days », The Astronomical Journal, vol. 129, , p. 433 (DOI10.1086/426339, Bibcode2005AJ....129..433K)
(en) W. P. Gieren, « Towards a reconciliation of Cepheid masses », Astronomy and Astrophysics, vol. 225, , p. 381 (Bibcode1989A&A...225..381G)
(en) M. Imbert, « Détermination des rayons de Céphéides. V. Vitesses radiales et dimensions de 22 Céphéides galactiques. Determination of the radii of Cepheids V. Radial velocities and dimensions of 22 galactic Cepheids », Astronomy and Astrophysics Supplement, vol. 140, , p. 79 (DOI10.1051/aas:1999515, Bibcode1999A&AS..140...79I)
(en) R. E. Luck, S. M. Andrievsky, A. Fokin et V. V. Kovtyukh, « Phase-Dependent Variation of the Fundamental Parameters of Cepheids. Iv. S-CEPHEIDS », The Astronomical Journal, vol. 136, , p. 98 (DOI10.1088/0004-6256/136/1/98, Bibcode2008AJ....136...98L)
(en) R. Schaltenbrand et G. A. Tammann, « The light curve parameters of photoelectrically observed galactic Cepheids », Astronomy and Astrophysics Supplement, vol. 4, , p. 265 (Bibcode1971A&AS....4..265S)