In the first place, little is known about the completion of the Aobyoshi-bon, and it is said that FUJIWARA no Teika compared many manuscripts, but it is unknown what manuscripts were actually collected for reference.
そもそも青表紙本の成立には不明の点が多く、藤原定家は多くの写本を照合したらしいが具体的にどのような写本を資料として集めたのかは分かっていない。