Talk:Treatise on Astrology of the Kaiyuan Era

External links modified (January 2018)
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 * Added archive https://web.archive.org/web/20070929131139/http://www.uni-tuebingen.de/uni/ans/project/conference/prelprog.pdf to http://www.uni-tuebingen.de/uni/ans/project/conference/prelprog.pdf

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Cheers.— InternetArchiveBot  (Report bug) 11:20, 25 January 2018 (UTC)