David Latham (2008. január). "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity". The Astronomical Journal (angol nyelven). 135 (1). New York: IOP Publishing: 209–231. doi:10.1088/0004-6256/135/1/209. ISSN0004-6256.
David Latham (2008. január). "Rotational and Radial Velocities for a Sample of 761 HIPPARCOS Giants and the Role of Binarity". The Astronomical Journal (angol nyelven). 135 (1). New York: IOP Publishing: 209–231. doi:10.1088/0004-6256/135/1/209. ISSN0004-6256.