[1] [CITE@ja[暦の会]]
([TIME[2014-11-12 21:36:13 +09:00]])
<http://www1.cts.ne.jp/~koyomi/index.html>

[2] [CITE@ja[『歴史読本』休刊: suchowan's blog]], [TIME[2022-05-26T02:43:32.000Z]] <https://suchowan.at.webry.info/201510/article_7.html>