『源氏物語』絵合における『うつほ物語』提出の意味 : 「知らぬ国」という言葉を手掛かりにして(The meaning of presentation of Utsuho-monogatari in the chapter ‘The picture contest’ of Genji-monogatari : having the word of “Shiranu-kuni” as a clue) 詳しくはこちら