Jones, K. G. (March 1969). "The search for the nebulae - VI". Journal of the British Astronomical Association. 79: 213–222. Bibcode:1969JBAA...79..213J.
Walborn, N. R. & Ingerson, T. E. (July 1977). "Structure in the Carina Nebula and Eta Carinae". Sky and Telescope. 54: 22–24. Bibcode:1977S&T....54...22W.
Schweickhardt, J.; et al. (July 1999). "Revised mass determination of the super massive Wolf-Rayet star WR 22". Astronomy & Astrophysics. 347 (1): 127–136. Bibcode:1999A&A...347..127S.
Høg, E.; et al. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy & Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
Vazquez, R. A.; et al. (March 1996). "Investigation on the region of the open cluster TR 14". Astronomy and Astrophysics Supplement. 116: 75–94. Bibcode:1996A&AS..116...75V.
Thackeray, A. D.; et al. (1973). "Radial velocities of southern B stars determined at the Radcliffe Observatory—VII". Memoirs of the Royal Astronomical Society. 77: 199. Bibcode:1973MmRAS..77..199T.
Houk, Nancy & Cowley, Anne P. (1975). University of Michigan Catalogue of Two-Dimensional Spectral Types for the HD Stars. Volume 1. Declinations −90° to −53°. Department of Astronomy, University of Michigan. Bibcode:1975mcts.book.....H. ISBN978-0-8357-0331-4.