[1] 新皇 - Wikipedia (2016-09-19 22:42:52 +09:00) <https://ja.wikipedia.org/wiki/%E6%96%B0%E7%9A%87>

[2] 承平天慶の乱 - Wikipedia (2016-09-19 22:45:14 +09:00) <https://ja.wikipedia.org/wiki/%E6%89%BF%E5%B9%B3%E5%A4%A9%E6%85%B6%E3%81%AE%E4%B9%B1>

[3] 平将門 - Wikipedia (2016-09-29 10:23:21 +09:00) <https://ja.wikipedia.org/wiki/%E5%B9%B3%E5%B0%86%E9%96%80>