Standish, E. M., Report of the IAU WGAS Sub-group on Numerical Standards, Appenzeller, I. (编), Highlights of Astronomy(PDF), Dordrecht: Kluwer, 1995 [2016-08-05], (原始内容(PDF)存档于2012-09-07)
IAU Division I Working Group on Numerical Standards for Fundamental Astronomy and Astronomical Constants: Current Best Estimates (CBEs) [1] (页面存档备份,存于互联网档案馆)
Standish, E. M., Report of the IAU WGAS Sub-group on Numerical Standards, Appenzeller, I. (编), Highlights of Astronomy(PDF), Dordrecht: Kluwer, 1995 [2016-08-05], (原始内容(PDF)存档于2012-09-07)
IAU Division I Working Group on Numerical Standards for Fundamental Astronomy and Astronomical Constants: Current Best Estimates (CBEs) [1] (页面存档备份,存于互联网档案馆)