半正矢 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "半正矢" in Chinese language version.

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ams.org

archive.org

astrosail.de

books.google.com

doi.org

du.edu

  • Calvert, James B. Trigonometry. 2007-09-14 [2004-01-10] [2015-11-08]. (原始内容存档于2007-10-02). 

fer3.com

google.cat

books.google.cat

issuu.com

kpn.nl

home.kpn.nl

  • van Vlijmen, Oscar. Goniology. Eenheden, constanten en conversies. 2005-12-28 [2003] [2015-11-28]. (原始内容存档于2009-10-28) (英语). 

starpath.com

uni-giessen.de

geb.uni-giessen.de

web.archive.org

wolfram.com

mathworld.wolfram.com

reference.wolfram.com

  • Haversine. Wolfram Language & System: Documentation Center. 7.0. 2008 [2015-11-06]. (原始内容存档于2014-09-01). 

wolframalpha.com

worldcat.org