publications
スイス・ロマンシュ語入門:文化誌 [Introduction to the Romansh Language of Switzerland: Cultural History]

In: Kawasaki, Y. Sakaguchi, T. Rüegg, J., Kumasaka, R.: スイス・ロマンシュ語入門 [Introduction to the Romansh language of Switzerland], Tokyo: Daigaku Shorin, 2014. (In Japanese).
Download Chapter 1: Bunka-shi, pp. 9–29 (in Japanese).
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Download Book Review in “Grüezi – Schweizerisch Japanische Zeitung” (in Japanese).