URLs

• https://ja.wikipedia.org/wiki/福田道生
• https://anidb.net/creator/125
• https://www.animenewsnetwork.com/encyclopedia/people.php?id=4093
• https://w.atwiki.jp/anime_wiki/pages/66.html
• https://w.atwiki.jp/sakuga/pages/453.html
• https://myanimelist.net/people/10428