[1] Stewart Island - Wikipedia (2018-02-19 12:01:35 +09:00) <https://en.wikipedia.org/wiki/Stewart_Island>

[2] スチュアート島 - Wikipedia (2018-02-10 00:11:30 +09:00) <https://ja.wikipedia.org/wiki/%E3%82%B9%E3%83%81%E3%83%A5%E3%82%A2%E3%83%BC%E3%83%88%E5%B3%B6>