S. Seliwanow (1923). “Mitteilungen uber Veranderliche - Veranderlicher 28.1923 Herculis - M. Wolf - December 1923” (German). Astronomische Nachrichten220 (15): 255. Bibcode: 1924AN....220..249H. doi:10.1002/asna.19232201505.
Tapia, S. (March 15, 1977). “Discovery of a magnetic compact star in the AM Herculis/3U 1809+50 system”. The Astrophysical Journal Letters212: L125-L129. Bibcode: 1977ApJ...212L.125T. doi:10.1086/182390.
Krzeminski, W. and Serkowski, K. (August, 1977). “Extremely high circular polarization of AN Ursae Majoris”. The Astrophysical Journal Letters216: L45. Bibcode: 1977ApJ...216L..45K. doi:10.1086/182506.
harvard.edu
ui.adsabs.harvard.edu
S. Seliwanow (1923). “Mitteilungen uber Veranderliche - Veranderlicher 28.1923 Herculis - M. Wolf - December 1923” (German). Astronomische Nachrichten220 (15): 255. Bibcode: 1924AN....220..249H. doi:10.1002/asna.19232201505.
Tapia, S. (March 15, 1977). “Discovery of a magnetic compact star in the AM Herculis/3U 1809+50 system”. The Astrophysical Journal Letters212: L125-L129. Bibcode: 1977ApJ...212L.125T. doi:10.1086/182390.
Hessman, F.V., Gansicke, B.T., and Mattei, J.A. (September, 2000). “The history and source of mass-transfer variations in AM Herculis”. Astronomy & Astrophysics361: 952-958. Bibcode: 2000A&A...361..952H.
Krzeminski, W. and Serkowski, K. (August, 1977). “Extremely high circular polarization of AN Ursae Majoris”. The Astrophysical Journal Letters216: L45. Bibcode: 1977ApJ...216L..45K. doi:10.1086/182506.
msu.su
sai.msu.su
“Query= AM Her”. General Catalogue of Variable Stars. Centre de Donnees astronomiques de Strasbourg. 2009年12月16日閲覧。