URLs

• https://en.wikipedia.org/wiki/Ichirō_Itano
• https://ja.wikipedia.org/wiki/板野一郎
• https://anidb.net/creator/1948
• https://www.animenewsnetwork.com/encyclopedia/people.php?id=4876
• https://w.atwiki.jp/anime_wiki/pages/2569.html
• https://w.atwiki.jp/sakuga/pages/348.html
• https://myanimelist.net/people/8268