[1] 皇代暦 - Wikipedia (2020-06-09 21:07:57 +09:00) https://ja.wikipedia.org/wiki/%E7%9A%87%E4%BB%A3%E6%9A%A6
[2] 歴代皇紀 (2020-06-28 20:39:37 +09:00) http://base1.nijl.ac.jp/iview/Frame.jsp?DB_ID=G0003917KTM&C_CODE=0091-001401