[1] [CITE@ja[suchowan's UniWiki Calendar/When/Exe/暦説明/本編/小説中の暦/ゲセン暦]], [TIME[2022-06-23T07:05:19.000Z]] <http://www2u.biglobe.ne.jp/~suchowan/u/wiki.cgi?Calendar%2FWhen%2FExe%2F%E6%9A%A6%E8%AA%AC%E6%98%8E%2F%E6%9C%AC%E7%B7%A8%2F%E5%B0%8F%E8%AA%AC%E4%B8%AD%E3%81%AE%E6%9A%A6%2F%E3%82%B2%E3%82%BB%E3%83%B3%E6%9A%A6>

[2] [CITE@ja[ゲセン暦: suchowan's blog]], [TIME[2022-06-23T07:05:36.000Z]] <https://suchowan.at.webry.info/201801/article_25.html>