Paunzen, E.; et al, Photoelectric search for peculiar stars in open clusters. XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547, NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2, Astronomy & Astrophysics, April 2014, 564: 8, Bibcode:2014A&A...564A..42P, arXiv:1403.3538, doi:10.1051/0004-6361/201423521, A42.
Frolov, V. N.; et al, Investigation of the open star cluster NGC 2323 (M50) based on the proper motions and photometry of its constituent stars, Astronomy Letters, February 2012, 38 (2): 74–86, Bibcode:2012AstL...38...74F, doi:10.1134/S106377371202003X.
Paunzen, E.; et al, Photoelectric search for peculiar stars in open clusters. XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547, NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2, Astronomy & Astrophysics, April 2014, 564: 8, Bibcode:2014A&A...564A..42P, arXiv:1403.3538, doi:10.1051/0004-6361/201423521, A42.
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Frolov, V. N.; et al, Investigation of the open star cluster NGC 2323 (M50) based on the proper motions and photometry of its constituent stars, Astronomy Letters, February 2012, 38 (2): 74–86, Bibcode:2012AstL...38...74F, doi:10.1134/S106377371202003X.
Paunzen, E.; et al, Photoelectric search for peculiar stars in open clusters. XV. Feinstein 1, NGC 2168, NGC 2323, NGC 2437, NGC 2547, NGC 4103, NGC 6025, NGC 6633, Stock 2, and Trumpler 2, Astronomy & Astrophysics, April 2014, 564: 8, Bibcode:2014A&A...564A..42P, arXiv:1403.3538, doi:10.1051/0004-6361/201423521, A42.