Perryman, Michael (2010). "The Making of History's Greatest Star Map". The Making of History's Greatest Star Map:. Astronomers’ Universe. Heidelberg: Springer-Verlag. Bibcode:2010mhgs.book….. P. doi:10.1007/978-3-642-11602-5Arxivləşdirilib 2023-07-07 at the Wayback Machine. ISBN 978-3-642-11601-8.
Zimmerman, Neil; Oppenheimer, Ben R.; Hinkley, Sasha; Brenner, Douglas; Parry, Ian R.; Sivaramakrishnan, Anand; Hillenbrand, Lynne; Beichman, Charles; Crepp, Justin R.; Vasisht, Gautam; Roberts, Lewis C.; Burruss, Rick; King, David L.; Soummer, Rémi; Dekany, Richard; Shao, Michael; Bouchez, Antonin; Roberts, Jennifer E.; Hunt, Stephanie (2010). "Parallactic Motion for Companion Discovery: An M-Dwarf Orbiting Alcor". The Astrophysical Journal. 709 (2): 733–740. arXiv:0912.1597 . Bibcode:2010ApJ…709..733Z. doi:10.1088/0004–637X/709/2/733.
Perryman, M. A. C.; Lindegren, L.; Kovalevsky, J.; Hoeg, E.; Bastian, U.; Bernacca, P. L.; Crézé, M.; Donati, F.; Grenon, M.; Grewing, M.; Van Leeuwen, F.; Van Der Marel, H.; Mignard, F.; Murray, C. A.; Le Poole, R. S.; Schrijver, H.; Turon, C.; Arenou, F.; Froeschlé, M.; Petersen, C. S. (1997). "The HIPPARCOS Catalogue". Astronomy and Astrophysics. 323: L49. Bibcode:1997A&A…323L..49P.
Perryman, Michael (2010). "The Making of History's Greatest Star Map". The Making of History's Greatest Star Map:. Astronomers’ Universe. Heidelberg: Springer-Verlag. Bibcode:2010mhgs.book….. P. doi:10.1007/978-3-642-11602-5Arxivləşdirilib 2023-07-07 at the Wayback Machine. ISBN 978-3-642-11601-8.
Zimmerman, Neil; Oppenheimer, Ben R.; Hinkley, Sasha; Brenner, Douglas; Parry, Ian R.; Sivaramakrishnan, Anand; Hillenbrand, Lynne; Beichman, Charles; Crepp, Justin R.; Vasisht, Gautam; Roberts, Lewis C.; Burruss, Rick; King, David L.; Soummer, Rémi; Dekany, Richard; Shao, Michael; Bouchez, Antonin; Roberts, Jennifer E.; Hunt, Stephanie (2010). "Parallactic Motion for Companion Discovery: An M-Dwarf Orbiting Alcor". The Astrophysical Journal. 709 (2): 733–740. arXiv:0912.1597 . Bibcode:2010ApJ…709..733Z. doi:10.1088/0004–637X/709/2/733.
Perryman, Michael (2010). "The Making of History's Greatest Star Map". The Making of History's Greatest Star Map:. Astronomers’ Universe. Heidelberg: Springer-Verlag. Bibcode:2010mhgs.book….. P. doi:10.1007/978-3-642-11602-5Arxivləşdirilib 2023-07-07 at the Wayback Machine. ISBN 978-3-642-11601-8.