URLs

• https://dic.pixiv.net/a/伊東岳彦
• https://www.amazon.co.jp/-/e/B003UW4L4Q/
• https://en.wikipedia.org/wiki/Takehiko_Itō
• https://ja.wikipedia.org/wiki/伊東岳彦
• https://www.animenewsnetwork.com/encyclopedia/people.php?id=258