Tsumugi Somei Biographie Contributions de Tsumugi Somei Auteur 3, Helvetica - tome 3 Tsumugi Somei, Shizuka Tsukiba Kurokawa 2, Helvetica - tome 2 Tsumugi Somei, Shizuka Tsukiba Kurokawa 1, Helvetica - tome 1 Tsumugi Somei, Shizuka Tsukiba Kurokawa 4, Helvetica - tome 4 Tsumugi Somei, Shizuka Tsukiba Kurokawa