[1] 年輪年代学 - Wikipedia (2021-07-22T03:20:49.000Z, 2021-08-05T03:20:59.245Z) https://ja.wikipedia.org/wiki/%E5%B9%B4%E8%BC%AA%E5%B9%B4%E4%BB%A3%E5%AD%A6

[2] 5_Creasman.pdf, 2015-04-15T04:49:59.000Z, 2021-08-05T03:22:40.572Z http://www.egyptpro.sci.waseda.ac.jp/pdf%20files/JES21/5_Creasman.pdf