Piskunov, A. E.; Schilbach, E.; Kharchenko, N. V.; Röser, S.; Scholz, R. -D. (June 2007), ”Towards absolute scales for the radii and masses of open clusters”, Astronomy and Astrophysics 468 (1): 151–161, doi:10.1051/0004-6361:20077073, Bibcode: 2007A&A...468..151P.
Davidge, T. J. (February 2013), ”The Open Cluster NGC 2437 (Messier 46)”, Publications of the Astronomical Society of the Pacific 125 (924): 115–125, doi:10.1086/669823, Bibcode: 2013PASP..125..115D
Piskunov, A. E.; Schilbach, E.; Kharchenko, N. V.; Röser, S.; Scholz, R. -D. (June 2007), ”Towards absolute scales for the radii and masses of open clusters”, Astronomy and Astrophysics 468 (1): 151–161, doi:10.1051/0004-6361:20077073, Bibcode: 2007A&A...468..151P.
Davidge, T. J. (February 2013), ”The Open Cluster NGC 2437 (Messier 46)”, Publications of the Astronomical Society of the Pacific 125 (924): 115–125, doi:10.1086/669823, Bibcode: 2013PASP..125..115D