Hafner, J. (1987). Hahnenschrei: Jonas Hafner. Drawings by Katsuhito Nishikawa. Gallery Shimada.
Lua i Stíl Chicago (17ú heag.)Hafner, Jonas. Hahnenschrei: Jonas Hafner. Drawings by Katsuhito Nishikawa. Yamaguchi-Shi: Gallery Shimada, 1987.
Lua MLA (8ú heag.)Hafner, Jonas. Hahnenschrei: Jonas Hafner. Drawings by Katsuhito Nishikawa. Gallery Shimada, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.