Publications of the Astronomical Society of the Pacific, 111: 1475-1502, 1999 December; SEARCH TECHNIQUES FOR DISTANT GALAXIES; INTRODUCTION （页面存档备份，存于互联网档案馆）
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Publications of the Astronomical Society of the Pacific, 111: 1475-1502, 1999 December; SEARCH TECHNIQUES FOR DISTANT GALAXIES; INTRODUCTION （页面存档备份，存于互联网档案馆）
wikipedia.org
en.wikipedia.org
Rowan Williams（英语：Rowan Williams） argues that the traditional figure of 318 is symbolic and derived from Genesis 14:14, whereas the actual number would have been around 250. Rowan Williams, Arius (Grand Rapids: Eerdmans, 2002), 67.
