Geschichte de japanischen Religion. Volume 1: Die alte Landersreligion. Volume 2: Japan mit und unter dem Buddhismus by Matthias EderArcadio SchwadeMN 36:1 (1981) pp. 105–107 → jstor.org/stable/2384095ShareZen Enlightenment: Origins and Meaning by Heinrich Dumoulin, John C. MaraldoJapanese Ink Painting: Early Zen Masterpieces by Hiroshi Kanazawa, Barbara Ford