Waka no shigaku : heianchō bungaku to kanbun sekai / Watanabe Hideo = The poetics of Waka poems : literature in the Heian period and world of classical literature in Chinese / Hideo Watanabe.
和歌の詩学 : 平安朝文学と漢文世界 / 渡辺秀夫 = The poetics of Waka poems : literature in the Heian period and world of classical literature in Chinese / Hideo Watanabe.