(en) G. Chauvinet al., « Characterization of the long-period companions of the exoplanet host stars: HD 196885, HD 1237 and HD 27442. VLT/NACO and SINFONI near-infrared, follow-up imaging and spectroscopy », Astronomy & Astrophysics, vol. 475, no 2, , p. 723-727 (DOI10.1051/0004-6361:20067046, Bibcode2007A&A...475..723C)
(en) G. Chauvinet al., « Characterization of the long-period companions of the exoplanet host stars: HD 196885, HD 1237 and HD 27442. VLT/NACO and SINFONI near-infrared, follow-up imaging and spectroscopy », Astronomy & Astrophysics, vol. 475, no 2, , p. 723-727 (DOI10.1051/0004-6361:20067046, Bibcode2007A&A...475..723C)