St‐Louis, N. A 2.3 Day Periodic Variability in the Apparently Single Wolf‐Rayet Star WR 134: Collapsed Companion or Rotational Modulation?. The Astrophysical
Peter. WR 104: The prototype Pinwheel Nebula. University of Sydney. [August 19, 2009]. (原始内容存档于2022-03-29). Tuthill, Peter. The Twisted Tale of Wolf-Rayet
doi:10.1086/323920 . Wolf-Rayet shells (页面存档备份,存于互联网档案馆) showing a spectrum of WR 135 WR134 Ring Nebula (页面存档备份,存于互联网档案馆) with WR 135 visible in the top