Lindgren, Sara; Heiter, Ulrike; Seifahrt, Andreas (2016-02), “Metallicity determination of M dwarfs. High-resolution infrared spectroscopy”, Astronomy & Astrophysics586: A100, Bibcode: 2016A&A...586A.100L, doi:10.1051/0004-6361/201526602
Gray, R. O.; et al. (2006-07), “Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I”, Astronomical Journal126 (4): 2048-2059, Bibcode: 2003AJ....126.2048G, doi:10.1086/378365
Newton, Elisabeth R.; et al. (2014-01), “Near-infrared Metallicities, Radial Velocities, and Spectral Types for 447 Nearby M Dwarfs”, Astronomical Journal147 (1): 20, Bibcode: 2014AJ....147...20N, doi:10.1088/0004-6256/147/1/20
Tanner, Angelle M.; Gelino, Christopher R.; Law, Nicholas M. (2010-10), “A High-Contrast Imaging Survey of SIM Lite Planet Search Targets”, Publications of the Astronomical Society of the Pacific122 (896): 1195-1206, Bibcode: 2010PASP..122.1195T, doi:10.1086/656481
Lindgren, Sara; Heiter, Ulrike; Seifahrt, Andreas (2016-02), “Metallicity determination of M dwarfs. High-resolution infrared spectroscopy”, Astronomy & Astrophysics586: A100, Bibcode: 2016A&A...586A.100L, doi:10.1051/0004-6361/201526602
Gray, R. O.; et al. (2006-07), “Contributions to the Nearby Stars (NStars) Project: Spectroscopy of Stars Earlier than M0 within 40 Parsecs: The Northern Sample. I”, Astronomical Journal126 (4): 2048-2059, Bibcode: 2003AJ....126.2048G, doi:10.1086/378365
Laing, J. D. (1989), “UBV(RI)c photometry of faint nearby stars”, South African Astronomical Observatory Circular13: 29-37, Bibcode: 1989SAAOC..13...29L
Newton, Elisabeth R.; et al. (2014-01), “Near-infrared Metallicities, Radial Velocities, and Spectral Types for 447 Nearby M Dwarfs”, Astronomical Journal147 (1): 20, Bibcode: 2014AJ....147...20N, doi:10.1088/0004-6256/147/1/20
Tanner, Angelle M.; Gelino, Christopher R.; Law, Nicholas M. (2010-10), “A High-Contrast Imaging Survey of SIM Lite Planet Search Targets”, Publications of the Astronomical Society of the Pacific122 (896): 1195-1206, Bibcode: 2010PASP..122.1195T, doi:10.1086/656481