[1] 新皇 - Wikipedia (9/19/2016, 1:42:52 PM) <https://ja.wikipedia.org/wiki/%E6%96%B0%E7%9A%87>
[2] 承平天慶の乱 - Wikipedia (9/19/2016, 1:45:14 PM) <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 (9/29/2016, 1:23:21 AM) <https://ja.wikipedia.org/wiki/%E5%B9%B3%E5%B0%86%E9%96%80>
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