Nicholas A. Murphy, John D. Monnier, William Clifford Danchi, Peter G. Tuthill: The Keck Aperture‐masking Experiment: Near‐Infrared Sizes of Dusty Wolf‐Rayet Stars. In: The Astrophysical Journal. únor 2007. DOI10.1086/509873. Dostupné online.
Nicholas A. Murphy, John D. Monnier, William Clifford Danchi, Peter G. Tuthill: The Keck Aperture‐masking Experiment: Near‐Infrared Sizes of Dusty Wolf‐Rayet Stars. In: The Astrophysical Journal. únor 2007. DOI10.1086/509873. Dostupné online.
universetoday.com
Universe Today January 7, 2009 Retrieved September 3, 2010
usyd.edu.au
physics.usyd.edu.au
TUTHILL, Peter. The Twisted Tale of Wolf-Rayet 104 — First of the Pinwheel Nebulae [online]. University of Sydney [cit. 2009-08-19]. Dostupné online.Je zde použita šablona {{Cite web}} označená jako k „pouze dočasnému použití“.