圆周率中连续的六个9 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "圆周率中连续的六个9" in Chinese language version.

refsWebsite

Global rank Chinese rank

5web.archive.org

1^st place

1^st place

low place

low place

6^th place

4^th place

1washingtonpost.com

34^th place

129^th place

1concordmonitor.com

low place

low place

low place

low place

angio.net

Pi Search. [2012-09-16]. （原始内容存档于2018-07-05）.
見，例如線上的π搜尋（页面存档备份，存于互联网档案馆）

archive.org

Hofstadter, Douglas. Metamagical Themas. Basic Books. 1985. ISBN 0-465-04566-9.

concordmonitor.com

granitegeek.concordmonitor.com

David Brooks. Wikipedia turns 15 on Friday (citation needed). Concord Monitor. 12 January 2016 [10 February 2016]. （原始内容存档于2017-01-18）.

joyofpi.com

π的前一萬個小數位. [2012-09-16]. （原始内容存档于2012-09-21）.

washingtonpost.com

Rucker, Rudy. Douglass Hofstadter's Pi in the Sky. The Washington Post. May 5, 1985 [4 January 2016]. （原始内容存档于2017-07-13）.

web.archive.org

Rucker, Rudy. Douglass Hofstadter's Pi in the Sky. The Washington Post. May 5, 1985 [4 January 2016]. （原始内容存档于2017-07-13）.
David Brooks. Wikipedia turns 15 on Friday (citation needed). Concord Monitor. 12 January 2016 [10 February 2016]. （原始内容存档于2017-01-18）.
Pi Search. [2012-09-16]. （原始内容存档于2018-07-05）.
見，例如線上的π搜尋（页面存档备份，存于互联网档案馆）
π的前一萬個小數位. [2012-09-16]. （原始内容存档于2012-09-21）.