參考資料
- ^ NAME G CLOUD -- Cloud. SIMBAD. [15 March 2014]. (原始內容存檔於2016-02-03).
- ^ http://interstellar.jpl.nasa.gov/interstellar/probe/introduction/neighborhood.html (頁面存檔備份,存於互聯網檔案館), Our Local Galactic Neighborhood, NASA
- ^ http://www.centauri-dreams.org/?p=14203 (頁面存檔備份,存於互聯網檔案館), Into the Interstellar Void, Centauri Dreams
- ^ 存档副本. [2012-10-22]. (原始內容存檔於2012-04-19). , The Interstellar Medium, 22 October 2012
- ^ http://www.igpp.ucla.edu/public/mkivelso/refs/PUBLICATIONS/Redfield%20LISM.pdf (頁面存檔備份,存於互聯網檔案館), Physical Properties of the Local Interstellar Medium, 22 October 2012
- ^ http://iopscience.iop.org/0004-637X/593/2/868/pdf/17092.web.pdf, LOCAL INTERSTELLAR MATTER: THE APEX CLOUD, 22 October 2012
- ^ http://www.newscientist.com/blogs/shortsharpscience/2012/02/spacecraft-probes-gas-cloud-sw.html (頁面存檔備份,存於互聯網檔案館), Spacecraft probes gas cloud swaddling the solar system, New Scientist, 22 October 2012