Massarotti, Alessandro; Latham, David W.; Stefanik, Robert P.; Fogel, Jeffrey (January 2008), "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity", The Astronomical Journal, 135 (1), ss. 209-231, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209
Gray, R. O.; Graham, P. W.; Hoyt, S. R. (April 2001), "The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. II. Basic Parameters of Program Stars and the Role of Microturbulence", The Astronomical Journal, 121 (4), ss. 2159-2172, Bibcode:2001AJ....121.2159G, doi:10.1086/319957
Wielen, R.; Schwan, H.; Dettbarn, C.; Lenhardt, H.; Jahreiß, H.; Jährling, R. (1999), "Sixth Catalogue of Fundamental Stars (FK6). Part I. Basic fundamental stars with direct solutions", Veroeffentlichungen des Astronomischen Rechen-Instituts Heidelberg, Astronomisches Rechen-Institut Heidelberg, 35 (35), s. 1, Bibcode:1999VeARI..35....1W
Massarotti, Alessandro; Latham, David W.; Stefanik, Robert P.; Fogel, Jeffrey (January 2008), "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity", The Astronomical Journal, 135 (1), ss. 209-231, Bibcode:2008AJ....135..209M, doi:10.1088/0004-6256/135/1/209
Gray, R. O.; Graham, P. W.; Hoyt, S. R. (April 2001), "The Physical Basis of Luminosity Classification in the Late A-, F-, and Early G-Type Stars. II. Basic Parameters of Program Stars and the Role of Microturbulence", The Astronomical Journal, 121 (4), ss. 2159-2172, Bibcode:2001AJ....121.2159G, doi:10.1086/319957
"zet Leo -- Variable Star", SIMBAD, Centre de Données astronomiques de Strasbourg, 2 Nisan 2016 tarihinde kaynağından arşivlendi, erişim tarihi: 12 Mayıs 2010
Kaler, James B., "ADHAFERA (Zeta Leonis)", Stars, University of Illinois, 4 Kasım 2016 tarihinde kaynağından arşivlendi, erişim tarihi: 12 Mayıs 2010
"zet Leo -- Variable Star", SIMBAD, Centre de Données astronomiques de Strasbourg, 2 Nisan 2016 tarihinde kaynağından arşivlendi, erişim tarihi: 12 Mayıs 2010