[1] [CITE@ja[天体暦 - Wikipedia]]
([TIME[2017-01-12 18:18:41 +09:00]])
<https://ja.wikipedia.org/wiki/%E5%A4%A9%E4%BD%93%E6%9A%A6>

[2] [CITE[Kyoto University Research Information Repository: 昔の英國の"哩"について]]
([TIME[2018-03-23 14:45:08 +09:00]])
<https://repository.kulib.kyoto-u.ac.jp/dspace/handle/2433/168076>

[3] [[DE]]

[5] [[英国暦]]

[6] [[米国暦]]

[4] [CITE[[[暦象年表]]]]