Kei Itō

1928

• Chūsei wakashū
• Muromachi jidai waka shiron
• Ojima no susami, Rokuonʼin-dono Itsukushima mōdeki, Shiarakawa kikō, Sumiyoshi mōde, Tsukushi michi no ki, Nagusamegusa, Fujikawa no ki, Michiyusaburi
• Shinhokuchō no hito to bungaku
• 中世歌合集と研究