https://www.newsweekjapan.jp/stories/world/2019/08/post-12868.php
https://www.newsweekjapan.jp/stories/world/2019/08/post-12863.php
https://news.tv-asahi.co.jp/news_international/articles/000162954.html
https://news.tv-asahi.co.jp/news_international/articles/000163052.html
https://r.nikkei.com/article/DGXLASFL28H4H_Y9A820C1000000?n_cid=SNSTW002&s=2